"No." he said meanly. "I don’t give a darn what Voldemort does to Draco. not after how much he misbehaved in school especially with YOU Enoby." he said while he frowned looking at me. "Besides I never liked him that much anyway."
—"Albert Dumblydore" (in one of the more extreme examples of this trope), My Immortal
In Abandon and it's sequel Reclaim, Ron raped Hermione on her birthday, getting her pregnant. He also explodes a glass in Ginny's face and attempts to poison Harry. During the summer Dudley and his buddies gangraped Harry. Dumbledore had Vernon under imperious so that he would molest Harry from a young age in order to "teach Harry his place in the world." Later Dumbledore sends a killing curse at Harry unmindful of the young child Harry has rescued from the battle.
In Abandoned To The Cold the Durseleys make Harry go through such extreme abuse that if he was normal he’d be dead. He goes a week without food or water, Dudley gives him piss to drink, and as a Christmas tradition every year Vernon and Dudley torture Harry with knives, skinning him alive. Harry mentions that the only thing Uncle Vernon doesn't do is pimp him out and that's only because it hasn't occurred to him yet. Dumbledore is fully aware of the abuse and encourages it to happen. Dumbledore also routinely brainwashes Harry with leglimency— implanting feelings of worthlessness so that Harry will be willing to kill himself later for the sake of Dumbledore's plan.
Aspirations inverts the Evil Ginny scenario by having Hermione first turning away from Harry when his name comes out of the Goblet, and then, when he gets together with Ginny, first tries to use a love potion (doesn't work due to the power of love), and then starts learning dark magic. Naturally, she goes rather mad from that. After an attempt to kill Ginny (which backfired - literally), she has a What Have I Become? moment. Put on a Bus later. Ron, however, is just a somewhat bigger jerk than in the books (and is actually trying to help Hermione despite her constant abuse of him).
Hermione's behavior is retconned in a very weird way. The first chapter has Hermione turning on Harry just after his name came out of the Goblet of Fire, but many chapters later is revealed that Hermione went to talk with Dumbledore to find a way to get Harry out of the Triwizard Championship (implying that she knew Harry was innocent) only to find herself under some kind of charm that apparently blocks her from acting normally.
In Bad Blood Will Out Molly Weasley and Dumbledore have been poisoning Harry with a potion to keep him dumb and compliant and a slave for Dumbledore. Ron was only pretending to be Harry's friend and drops the act as soon as it becomes obvious that the potion is no longer affecting Harry.
Bonded. Starts off when the Dursleys try to kill a six year old Harry (Dudley participating). Dumbledore believes himself to be good... but his idea of ensuring the survival of good is "Get Ginny to have a child with Harry, get Harry killed, let the weeping widow raise a heroic child who'll be too disgusted at dark magic".
The 'Abusive Dursleys' plot is in full-force within the first two paragraphs alone:
Less than half an hour later his uncle who burnt his tongue on a gulp of hot coffee then proceeded to pound the child repeatedly for half an hour leaving him unconscious with a broken left arm and bruises to 80% of his body. He left the right arm unbroken so the boy could do his chores.
Child of Grace uses this, along with "alternate universe female Harry" and "Ron hates Harry for not being in Gryffindor", bringing us Holly Potter, a girl who swings between being a Purity Sue and a Jerk Sue and who begins the tale sitting out in the snow while the Dursleys are inside eating dinner. She is quickly established to be skinny, frightened by anyone touching her, heavily black and blue under her clothes from the beatings, and will curtsy to all strangers because the Dursleys had had such manners "all but beaten into her".
Some of the stories featured in this collection of Harmonian one-shots use this. Surprisingly however, it is not the Weasleys who bear the brunt of it. In the final short story, Dumbledore is made guilty of stealing more than eight million galleons from Harry's bank vault at Gringotts, an offense so great he and his accomplice Snape are executed on Harry's first day at Hogwarts. Despite this, Dumbledore still comes off as better thanthe heroes.
In the Marvel Universe crossover CyberTech: War of the Worlds, Harry's sister, Amanda, is the Girl-Who-Lived and Harry is sent to the Dursleys. Amanda is actually pictured normal and oppressed by Dumbledore. The Dursleys are arrested in the beginning of the story for the usual reasons. The Potters seem to be that trope at first, but then it turns out Dumbledore has been controlling them. By the time of the sequel; Molly and Ron are in prison, with Ron in some kind of relationship with Blob and Molly still refusing to believe Dumbledore could do anything wrong, Lily is with Psylocke, Dumbledore in a padded cell after being cursed to dream about the suffering he caused, and Voldemort is in therapy after sharing the cell with Dumbledore. And it is shown in such a manner that it's difficult not to pity him. The sequel's added alternate dimension has a manipulative, but not quite evil Dumbledore (it splits off approximately the canon where book 5 begins) and a homophobic Wizarding world which brainwashes muggleborns and Muggle-raised into forgetting their previous life.
In the Hellsing crossover Death's Visage Vernon Dursley is a rapist along with a Domestic Abuser, Dumbledore is secretly a manipulativeKnight Templar who tries to bind Harry's powers away because they're "too dark" and wants to force Harry to remain with his rapist relatives "for the good of the wizarding world" while he is fully aware of the abuse. Also when Harry is sorted into Slytherin Ron becomes The Bully.
In the Devil May CryCross OverDevil's Ascension the Dursleys beat the then four-year old Harry regularly until he was rescued. Then some eleven years later Dumbledore forces Ginny Weasley to be possessed by Tom Riddle's diary again in order to "test" Harry Sarda when his other attempts at controlling him fail.
In Do Not Meddle In The Affairs Of Wizards Ginny is a Yandere who stalks Harry to the point where even Yuno Gasai would have been going '... a bit much, surely?', deliberately impregnates herself with stolen sperm and then tries to use the test-tube-child to trap Harry into marriage, and nearly kills Luna for the high crime of talking to Harry (although in fairness the part where Luna almost died was an accident — Ginny didn't know that Luna was seriously allergic to bee stings). Also Dumbledore is obsessed with controlling every aspect of Harry's life—especially since Harry has unlocked God-like powers.
Done to many characters who were already unpleasant in canon in the controversialDumbledore's Army and the Year of Darkness, indeed forming a large part of why the story is so controversial. Severus Snape, who in the books was a very, very effective Reverse Mole who through all his sadist teaching legitimately tried to protect as many students as possible from the Death Eaters, is here shown to thoroughly enjoy his position as Death Eater-appointed Headmaster of Hogwarts; he attempts to assassinate Neville, hires the former Dragon to Grindelwald as school disciplinarian, and when a Slytherin student defects to the good guys it's strongly implied he has the boy's entire family killed. He still turns out to be a mole here, but this is simply treated as the final insult; that someone so horrible could still be remembered as a hero simply for nominally siding against someone even worse. Crabbe and Goyle, meanwhile, have their Smash Mook characterization taken Up to Eleven and become torturers and rapists, and even the crotchety janitor Mr. Filch is shown to have joined the Carrows as a school Torture Technician. Two minor characters, John Dawlish and Albert Runcorn, also receive passing mentions as having literally joined the Death Eaters; in the books they're Umbridge's henchmen, which is plenty bad, but there's no indication they serve anyone but the Ministry.
In Emancipation Ron is a lazy idiot who only hangs out with Harry for the fame and has a pathological hatred for all things "dark."
Embers Of Dusk is another wrong boy-who-lived story where James, Lily, and Sirius are neglectful and abusive towards Harry until Dumbledore decides that rather than having Harry around to grow up as The Resenter they should instead wipe his memories and send him to live at a Muggle orphanage. Harry ends up at Wool's. Nice Job Breaking It "Heroes".
In Empire Dumbledore is the ultimate evil of the story. He left Harry to be abused by the Dursleys so that he could "save" him later, framed Sirius Black, made sure the Potter's will was lost, and Voldemort was merely his Unwitting Pawn and its implied that Dumbledore was somehow behind Voldemort's madness. Later when Sirius begins to disrupt Dumbledore's plans he tries to get Snape to poison him.
Exhibit A does this to the entire Order of the Phoenix (except for Snape) when they decide the best way to get Harry to manifest "the power the dark lord knows not" is to torture and rape him for two years.
The Girl Who Lived does this in a truly bizarre fashion. At first, Ron is more or less his canon self, but as time went on most of his good moments were handed off to Hermione or Neville or Rose. This left Ron as a lazy idiot who begged Rose to let him copy her homework, only for her to roll her eyes and condescendingly tell him to do it himself. The author also makes his bad moments (like the fight in The Goblet of Fire) appear far worse then they are, giving Rose the chance to fight back. Ginny, meanwhile, is initially presented as Rose's best friend and fellow Druidess, but after rewriting Order of the Phoenix she appears to lose with favor with the author and by extension Rose, and is more or less replaced by Luna. In the brief amount of time she's shown in Half Blood Prince she's a jealous shrew who wrongly picks on Fleur and yelled at by Rose. Helps that the author is a committed Harmonian, explaining the Ron and Ginny bashing.
Most of the entire British Wizarding World is given a full dose of this in Harem War, (M), a fic which pretty much tropes the entire wizarding society, mocking virtually all the pureblood culture and presenting many of the men most people dislike (Death Eaters, Fudge, the works), as perverts who possess concubine slaves and various other parts. To tropes Molly standard, Draco standard, Dumbeldore standard Harry hater and the main seller of concubines (AKA, any girl without a father or other designated magical guardian, a list that would at various times feature Hermione, Luna, The Patil's, Lavender, Cho and many OC's, Snape standard Lucius standard and Ron standard taking on full Trope form, barring the death eater part, as time goes on. However, it also shows off several troped characters pleasantly. Ginny originally believed to be in her troped form but was proven to be innocent, the Dursley's were shown to be under personality altering potions, Remus was slightly bashed for being responsible for making Nymphadora a Concubine at age 13, but this was later shown to be a result of a misunderstanding of the laws( And under the correct assumption it would be better for her than if he was wrong), and Pansy was shown to be sort of half half....
Harry and Hermione's secret: "Did you know [Ron] tried to rape last year?" Presented entirely matter of fact and never referenced again.
Harry, in Slytherin. Ron severs ties with Harry the second he's sorted into Slytherin, giving him "a look of deep hate". He assaults Hermione in their first flying lesson, and in his second year nearly kills her with a spell; expelled, he ends up attending Durmstrang (often referred to as the "evil" school, despite Viktor Krum being a student there).
The Ongoing story Harry Potter And The Altered World, features a world with bashing of a huge swath of the Wizarding World so strongly it was easily, and quite tangibly visible during the second chapter. The story, as it was a world that was randomly altered after Harry traveled back in time, features Dursleys who tried to kill Harry and Hagrid in Hut on the Rock, and killed offscreen, 'Ronfoy Prewett', Molly Weasely being best friends with Rita Skeeter and Dolores Umbridge and a new Headmaster after Year 3 who is the embodiment of Pureblood bashing (His last name is litteraly Plasma). However, its who he doesn't bash that is almost as scary when compared to their canon counterparts; with Hufflepuff Malfoys who are close to their 'Uncle Remus', with Lucius as the Auror who put Bellatrix Away (Thus preventing the loss of Neville's parents), Lockhart is actually competent (Yet he is depicted like a Greater good Dumbeldore) and Hagrid is depicted as getting a new dangerous pet every year, ranging from a Nundu named Mr. Whiskers to Flesh Eating Squirrels (The only pets he was depicted as not having were Ra'zac... there are a ton of cameos)
Harry Potter And The Curses Cure was quick to depict Ginny as an attention seeking slut, Ron as a violent, pushy, rejected love interest who rapidly lost intelligence... really rapidly, Molly as a banshee, Snape and Draco as rapists and Dumbledore as the Greater Good type....though compared to most hims he's rather tame. Though over time, Ginny was shown to be that way because part of Voldemort was still in her (Molly didn't take her to get checked), with Word of God saying Ron will one day be redeemed.
The very first Harry Potter fanfic, Harry Potter and the Man of Unknown, did this to an extent. While not Obviously Evil and maintaining the pretense of his canon personality, Dumbledore was nonetheless revealed to have given Harry to the Dursleys over his mysterious uncle (the Anti-Hero protagonist) and his reason for doing so was fairly dumb.
Molly: Ginny, you've got to calm down. Minerva has caught you four times with different boys.
Ginny: That just goes to show that she's not as informed as she thinks. She missed five others, Mum. Look, with everything I'm doing for you, you can cut me some slack. That pathetic half blood upstairs must be a eunuch. I haven't managed to get a bit of action out of him.
This is toned down in the revised version, in which Ginny genuinely likes Harry, but the reason why she is with Harry is because she thinks he is going to die fighting Voldemort and wants to give him something to be happy for before he marches to his death.
Proof that not all fics that do this are bad: Harry Potter And The Nightmares Of Futures Past does this to both the Dursleys and Snape, justified by the author as taking the abuse seriously (the frying pan being swung at Harry's head being classed as assault), and the last book not being released when the fic was started (the writer therefore did not know whether Snape would be redeemed or not - although he stated openly he believed in the first option). Dumbledore gets this slightly as a Well-Intentioned Extremist who believes in the ends justifying the means.
To be fair, canon Snape is a mean, vindictive bastard, although he is far more subtle with it. Most of the time, anyway. Other times, not so much. And the author did say he would incorporate the Deathly Hallows version of Snape into his fanfic. How he intends to do that, however, remains to be seen...
Harry Potter And The Price Of Being Noble bashed Molly immensely, depicting her as having a virulent hatred for Veela, despite Ginny of all people trying to make her see that two of Harry's three wives are not gold digging, Harry-controlling banshees. She eventually gets better. Ron is also depicted as sexist.
This is a rather harsh characterization: Molly doesn't have a "virulent hatred" of Veelas; she's merely prejudiced against them and is convinced that they mislead and use men and, specifically, she worries that Gabrielle (who is the only one she knows of during her unreasonable prejudice phase) is going to break Harry's heart. Ron shares these opinions, basically because they're all he had ever heard of Veela. He demonstrates no non-canon issue with women in the story, other than a few careless remarks about "those Veela girls."
Harry Potter And The Restored Legacy does this with Ron, though unlike most fics, the writer explains this by being tempted with a ministry job by Percy to work with Umbridge, Dumbledore is originally depicted a bit greater good like, but during the story its explained the entire reason why he did so was not the only way and spends the second half of the story redeeming himself, with Molly being the reason for his behavior in the first half.
Vernon: Boy! I'm trying to come up with some new ways that I could make your life even more miserable than it already is, but I'm having a hard time with it. What do you think?
Harry: I don't know, Uncle Vernon. I mean, you're already allowing me only the barest minimal necessities for keeping me alive. You're also beating me on a four times a day basis, five times on Saturday since it's your day off, plus the beatings that Dudley and his friends give me whenever they feel like it. Also, I've never been allowed to properly tend to any of the wounds I've received from those beatings, so my body's probably heavily infected in multiple places right now. You killed my owl and then forced me to cook her for your supper, and then beat me because she was too salty. I could honestly die any day now of starvation, dehydration, overexertion, or a combination of all three. The jury's still out on whether or not I've contracted cancer from that toxic waste you dumped on me the other day, and let's not forget that I'm also mentally scarred, not just from all the verbal abuse I take from you three, but also from seeing my godfather, the last remaining family I have that cared about me even the slightest bit, killed right in front of me not so long ago. I can honestly say that my life sucks about as hard as is metaphorically possible already and, off the top of my head, can't think of a single way that you could make it worse short of murdering the rest of my friends in front of me.
Vernon: Well, what if I were to violate you sexually?
Harry: ...Well, there you go: that would do it. That would be the proverbial icing on the seven-layer tragedy cake of my life. I really have to commend you, Uncle. Voldemort himself could take lessons on what it means to be a truly evil bastard from you. And I'm not just saying that, either. When Voldemort wants to be evil he just kills people, or tortures them into insanity and then kills them. Pretty cut and dry stuff. But you? Hell, you actually sap the very life out of a person, making them so unbearably miserable that it just completely takes away any will to continue living that they might have had. And then when they think their life has hit rock-bottom, well you just go find them a pick-ax and tell them to get back to digging. Truly monumental, that.
In Harry Potter: The Dark Wraith, Dumbledore is a horrendously evil man who steals souls to get stronger to become immortal. Psychopath Ron also quickly emerges after being rejected by Hermione, who then immediately blames Harry for it and wants to kill him. The story wastes no time in derailing both of these characters; it does so in the 1st chapter.
Harry Potter And Teammates, a rare fic that pairs Harry with the three Chasers, bashes Molly by having her confiscate and refuse to return Harry's account key (People who read Fanfiction get one guess as to what this will most likely lead to) and initially hints at Hermione keeping a major issue from Harry out of spite, but this is later revealed to only be because she found out when Harry and her were fighting and was scared that he's react badly (their friendship remains)
The NarutoCross OverHarry Potter: Bloodline is another "wrong boy-who-lived" storyline where James and Lily ignore Harry growing up and they disown him when he's sorted into Slytherin and has the additional horror that Dumbledore intends to one day use Harry in a ritual that will make his Jerkass OC brother more powerful—a ritual that will drain Harry of his magic and kill him! But then when Dumbledore and the Potters learn that Harry has inherited family magics that are non-transferable along with quite a bit of money they (suspiciously) suddenly want him back. Also Ron and most of the Gryffindors are jerks.
Hermiones Talent makes Ron into a cheating bastard and Lavender (who Ron cheats on Hermione with) into an actual Death Eater.
An odd example in Paul Gadzikowski's crossover fanfic webcomic The Hero Of Three Faces: A few strips are based on a gag that JK Rowling based the Harry Potter books on stories the Doctor (from Doctor Who) told her about his schooldays, altered to be about magic instead of superscience. The real Gallifreyan kids Ron and Hermione were based on grew up to be the Master and the Rani.
ANYTHING by hippogriffgirl42, who is widely believed to be a Troll. Her most infamous fic, revolves around a Mary Sue matchmaking Harry and Hermione by killing the 'Weasel Tramp', who is in league with an American Dark Lord. The story begins with this, which was one of the most light-bashing parts of the story.
It was seventh year, after the defeat of Voldemort. Everyone had come back and things were normal again except Ron was dead but no one really care about that. At the opening feast that year Professor McGonagall made a special announcement.
In Honey Dumbledore and the Ministry regularly cannibalize the muggleborn students for their power.
Fanfics which indulge in Ron bashing also tend to portray the wizarding world as ridiculously archaic and obsessed with blood purity. There are a number of fics where Ron wants to teach Hermione her place in the wizarding world since she's just a mudblood and begrudges Harry his wealth because he is a "half-blood", and you wonder why the war was fought at all. Sample this piece of gem from the fanfic In This World and the Next where Umbridge becomes Minister instead of Kingsley Shacklebolt (since the minister has to be British and a pureblood). Umbridge has this to say after Ron rapes Hermione: "The law states that it is impossible for a pureblood to rape a Muggle born or half blood, the girls should be delighted to receive the attention of such noble wizards"... Voldemort looks like a seriously misunderstood dude in comparison.
Well, you actually can imagine canon Umbridge saying that; the part that qualifies for this trope is where the Weasleys joined the parade. But if you thought that was over the top, wait until the later chapters where Harry and Hermione cold-bloodedly murder and torture several Weasleys in the past, before they've committed any of their chapter 1 crimes, and are presented as perfectly justified in doing so! (Granted that Percy was plotting to murder or at least assault someone due to insane jealous fixation, there's still ways to handle that short of feeding him to a Cerberus. And 'being an ill-mannered jerk' is not remotely enough justification for literally castrating Ron...) Well, Hermione has some angst, and actually convinces Harry to merely leave Ron as a beaten, traumatized shell of his former self and also turned into a girl by troll-inflicted Groin Attack. That's all right then.
Another example from this author is More Important Things, where the diary Horcrux succeeds in killing Ginny and Voldemort subsequently takes over several years early. Ron happily jumps on the bandwagon of this pureblood-favouring society, to the point where he goes out in public with a couple of partially clothed girls on leads, and orders Hermione to "get down on (her) knees and attend to (his) needs now" in the middle of the street because she's a lowly Muggleborn.
In the AUThe Indecipherable Riddle Harry learns that James and Lily Potter aren't his real parents and that James Potter kidnapped Bellatrix and Voldemort's son during an auror raid and then fed him dangerous potions so that they could pass him off as their own. Also as soon as Dumbledore learns of Harry's true parentage he can't throw him away fast enough—Dumbledore has him declared legally dead and proclaims Neville as the true "Boy-Who-Lived."
In Lettered this is subverted with Ginny who does not get this treatment and remains Harry's best friend. It's played straight however with Ron and Hermione who become raging homophobes and are revealed to be spies for Dumbledore who were only pretending to be Harry's friends. Dumbledore himself is conspiring to steal Harry's magic and the all the credit upon Voldemort's defeat. Dumbledore also created Voldemort by allowing dangerous psychiatric experimentations on "at-risk" children (one such experiment involved brainwashing to hate muggles)—most of the subjects died but Tom Riddle was the only "success" of an alternate personality taking hold.
Lily's Defender does this to James Potter and Sirius Black. After getting off on the wrong foot with Lily on the Hogwarts Express, they immediately turn racist and prejudiced against Muggle-borns, believing they are too "stupid" to attend Hogwarts, despite the fact that there is no evidence James and Sirius held those beliefs at any point in their life in the actual canon and openly rejected them at several points, Sirius hating his family for being pureblood fanatics and James repeatedly asking Lily out despite her constant rebukes.
There's an interesting variation in Lord of Caer Azkaban—Ron is portrayed as a crass, arrogant, glory-hound and prejudiced against all things dark. So before Ron can discover and get pointlessly jealous that Harry has become the Lord of a Dark Kingdom Harry's loyal subjects arrange so that Ron gets interested in attending a Magical Chess school in Moscowwhere he can be the Big Man on Campus. After a few weeks in Moscow Ron actually begins to mature and is able to overcome his inferiority complex enough to spare a thought to Harry's feelings. Eventually this is Subverted completely because when Ron does find out that Harry is Lord Azkaban his response is "better you than me" because he doesn't want the responsibility of ruling a country. He also gives Harry and Hermione his blessing because he's in love with an OC chess champion. Meanwhile Dumbledore is cool with Snape sending horrifically painful dark curses Harry's way if it means he can capture Harry and have him under his control and whenever he mentions the so-called "Greater Good" he actually means 'feed my ginormous ego.' Though later he actually comes to realize what a colossal dick he's been.
In Losing Touch Dumbledore has been molesting Harry since he was 11 and the Weasleys and Hermione and most of the Hogwarts staff know about it and don't care.
Lovely Sympathy is a story taking place post-Deathly Hallows but with one big difference: Snape lives. Of course, this has the effect of turning Ron into a maniac who regularly abuses Hermione, including using two of the unforgivable curses on her, to get him out of the way so Hermione can end up with Snape.
Mr Weasley kidnapped Miss Granger from behind my back, used crutiatus and then fled. She is fine, but refusing to let me leave, cover needed for my lesson. Will explain more later but it looks like Harry is in big trouble.
All over the place in My Immortal. The Trope Namer himself is merely turned into a "goff" friend of Ebony's (and changes his name to Diabolo), and despite Harry/Draco being a couple in the fic, Ginny is only mentioned briefly as one of Ebony's clones. At the same time, however, Dumbledore, Snape, and Lupin all get Death Eater'd. While he's certainly out of character, exactly what Dumbledore does that's so evil is a bit of a mystery. The quote at the top of this page is practically the only exception to his portrayal as a good-hearted, senile moron, but the only thing Ebony and friends care about is that he's a "poser". It's also weird that Snape is considered a "prep" when the canon Snape is arguably the most gothic character in the whole series. Furthermore, the portrayal of Snape and Lupin as "pedos" seems to come completely out of left field.
McGonagall gets a dash of this too, the most glaring example being when she magics chains onto Ebony, Draco, and Vampire, and then leaves them to be tortured by Snape.
Played half straight in the very, very NSFW fic Not Go Gentle- while Ron does rape Hermione, he was being manipulated by Ginny, who is a straight example, being in love with Voldemort, though he at least is only using it as a source of loyalty.
The author LOVES this trope. Most of his stories contain large amounts of Weasley-bashing, followed by incrediblyinventivepunishments. His fanfics have Ginny turned into a shrieking harpy who attempts to rape Harry, Ron's Book Dumbflanderized into such stupidity that he can't tell the difference between one hole and another (better than his treatment in subsequent fanfics, where he's raped repeatedly by the ghoul in his house and a harem of watersports-loving Slytherins), and Mrs. Weasley in a lesbian relationship with Dolores Umbridge.Let that sink in a bit.
Another story by the same author also features Dominatrix Hermione, Cowboy Voldemort, Wrestler Voldemort, Evil!Alternative Universe!Harry, Super Masochist!Ginny, and more gratiutious sex than a shelf full of porn. One wonders what exactly readers were expecting.
In Nothing in Return, it is revealed around chapter 30 that not only is Ron evil, the real Ron been dead ever since the contact with one of the brains inside the Ministry, which used to belong to a Death Eater's relative. Dumbledore seems to be rather manipulative, but as of chapter 32, the extent is unclear.
Oedipus Flower(which has been deleted) asks what Harry would be like without a fragment of Voldemort's soul inside of him. He ends up having sex with his sister and his mother (both willingly and at the same time), then murders his brother and father. At least he gets arrested at the end.
Paraselenic has the surprise Plot Twist where McGonagall is Voldemort's Deep Cover Agent. Also there's Dumbledore—after he realizes he's lost control of "his weapon" he mind rapes Harry by trapping him in a Lotus-Eater Machine showing how everything could have been so perfect if he would only forfeit his pesky freewill and become a mindless slave for Dumbledore.
Partially Kissed Hero would be perhaps the crowning example of Evil!Dumbledore, had the fic not later on gone entirely off the rails (Not that Dumbledore's gotten any better; he's just gotten less and less rational, to the point where the plot seems to be random'ing all over the map). Dumbledore is presented as secretly controlling all of Wizarding Britain, to the point where Voldemort is an almost irrelevant sideshow. Snape is also Flanderized into Dumbledore's equally evil sidekick.
Harry: Think, Hermione! If you wanted to rule the Wizarding World, what would you want that Dumbledore doesn't already have?!?
In The Phoenix Syndrome by apAidan, which is one of the very few epilogue-compliant bashfics, Ron is a lazy jealous git who never loved Hermione and only married her so that Harry would never be happy. He also gladly cheats on her with every woman in sight, including Pansy Parkinson, and is so stupid that he never notices Pansy using their trysts as opportunities to steal and photocopy classified Ministry documents from Ron's belongings. But that's still nothing compared to the delusionally insane sex-addicted sadistic psychopath that Ginny's turned into, and that's before you factor in Ginny's having been possessed by the horcrux of Bellatrix Lestrange.
Subverted in Possess Me where Ron is like the best friend ever and is supportive of Harry and his choices—no matter what. Played Straight with Dumbledore who tries to kill Harry after he embraces his vampire heritage.
Played for Laughs in Potter Puppet Pals, in which Harry is a sociopathic Jerkass who makes everyone's life a living hell. Among other things, he's driven Neville to suicide and ate his corpse, decapitated Draco and set him on fire while singing a happy song about it, threw Snape into a wall over and over again for no reason until he lost consciousness, and went on a rampage where he beat random people unconscious with a club, while Ron and Hermione are his Extreme Doormat companions.
Earlier shorts, on the other hand, show Harry as just mildly annoying, and instead gave this treatment to Snape, showing him as a short-tempered Jerkass (more so than in canon) even to the point of murdering Harry and Ron for invading his personal space.
The Prayer Warriors. While most of the characters are just Designated Villains, Dumbledore is said to be a paedophile and in one of the early chapters whips a kid for praying to God, and later has a stand-in for the author's brother executed for worshipping both God and Satan (while this would come off as a Moral Event Horizon, interestingly enough, the author expects us to like it). Interestingly enough, Ron doesn't come off as badly as many examples, and at worst, he isn't that bothered by the death of his sister.
In Pretty Boy Dumbledore is just as bad if not worse than Voldemort, he's just as arrogant and cruel and he has bound Harry's magic so tightly that Harry could hardly produce enough to power any spells and if Severus hadn't found and removed the bindings it would have killed Harry by the time he turned 20. Dumbledore has also has been leeching the life and magic out of his brainwashed followers. When Harry discovers Dumbledore's plans for him shortly after arriving at Hogwarts he ran away but Dumbledore refused to admit he's made a mistake and continues to tell everyone that Harry is safe and undergoing intense training while he continues to steal from Harry's Gringott's accounts. When Sirius and Remus insist on seeing Harry, Dumbledore lies to them and says Harry doesn't want to see them and that he hates them. Dumbledore also has no real interest in helping magical creatures such as werewolves and only sees Remus as his weapon, regularly making him go on the most dangerous missions. Later when Sirius interferes with his plans Dumbledore considers rendering him comatose or breaking his mind because he can't just kill him seeing as he still needs to access the Black family properties. Also Ron is a lazy and narcissistic unemployed lout who would never have even passed school if not for Hermione's help.
Infamous fanfic author pstibbons does this to pretty much every character who is either a.) not Hermione, b.) not a Death Eater, and c.) not easily made gay, working off the premise that none of Hermione's common potential suitors are good enough for her, with Harry and Ron being portrayed as horrible people for even the tiniest slight against her, which, of course, has the unintended effect of making Hermione come off as a sociopath. In "A Very Alternate Yule Ball," Hermione punishes Ron (exclusively referred to as "MoRon" by the narratorial voice) for a minor insult by orally raping him with his own penis, and gets away completely scot free after justifying herself with a confusing rant that is a thinly-veiled Take That toward the US Military's former "Don't Ask, Don't Tell" policy (with Muggleborn wizards standing in for gay and lesbian Armed Forces members); Hermione thereafter leaves Hogwarts takes over the Death Eaters and succeeds Voldemort as the most feared dark magic practitioner in Britain... despite deciding she wants to be a Badass Normal and trading in her magic for a katana and tracksuit. In "The Writer," Ron and Ginny commit some unspecified heinous crime, and once they are captured, Ron is executed by being sodomized to death with a sharpened broomstick and Ginny is exiled to an Alternate Universe with no magic which turns out to be Real Life, and Ginny adopts the alias of J.K. Rowling...
Which basically means that in punishing Ginny, they inadvertently made her the richest woman in the United Kingdom. Nice Job Breaking it,"Heroes".
It's Seel'vor's "The Real Us", for those who want to know what it is without actually giving it a click. As to why it qualifies? It retcons the entire series. The ENTIRE series. As in, NOTHING the books told you was going on was really going on. The amount of effort the author put into this actually earned it a place on my favorites' list, in much the same way that a master-class forgery of a painting is in its own twisted way a work of art.
Thankfully averted in The Rise of an Alpha series (Becoming Alpha, Return of an Alpha, Clash of the Alphas and Life of a Conquering Alpha). While, at the start, Ron dislikes Harry for being a Slytherin, Harry's kindness and efforts to have the whole of Hogwarts working together, as well as saving Ginny from the Tom Riddle's Diary, have him slowly mellow out and, while he doesn't become as close to Harry as the canon Ron, he eventually becomes a friend and partner in what Harry is doing.
Played painfully straight in Rise of the Drackens, where Ron decides to punch a pregnant Harry in the stomach for outwardly dating two Slytherins and two people a lot older than him, almost causing a miscarriage. The fact that Ron is basically the only person in Hogwarts to react negatively to the relationships makes it all the more infuriating. Eventually, Ron gets cut out altogether to focus on other drama.
For possibly the most extreme and idiotic example of the Dursleys getting this, look no further than a sad story. Vernon is physically abusive to Harry, often when he doesn't follow his (contradictory) orders, and ultimately ends up killing him.
"The family is going out to dinner" he began "You will stay here, but you will be somewhere where you can't make any trouble" He said as he grabbed Harry by the neck and dragged him to the garden Shed. He padlocked the door with at least 20 locks.
Harry: (to Ron) I mean, most of the time, it's one of the things I like best about you, that things are so... simple for you. But Malfoy's been raised for this, trained for it. He told me once that a murder is just taking control of someone in a final sort of way, like it was nothing. I knew he'd be a Death Eater then, a murderer. I should've listened to my instincts.
Hermione: Oh, Harry. We all could have guessed it, but we didn't want to believe it of him...
Ron: You two sure do turn on a knut, don't you?
In The Seekers, the remains of Tom Riddle's personality resurface in Ginny after Harry and Cho hook up.
Semper Letteris Mandateinverts the usual scenario of "Ron is a jealous traitor and Hermione goes along with it because she's dating Ron." In this story Hermione is both The Resenter and a wannabe evil mastermind who is spying on and trying to control Harry and Ron is just her whipped, weak-willed boyfriend.
In 3 Slytherin Marauders Ron, Hermione, and Lupin are introduced as Jerkasses (though they seem to get better in later chapters), also Sirius. Taken Up to Eleven with Neville who has become The Resenter and Unknown Rival to Harry, and Dumbledore who bound Dudley's magic so he would remain a muggle and paid Vernon to abuse Harry so that he could swoop in and "save him" later in order to turn Harry into a weapon that would be completely loyal to him and would be okay with dying for the "greater good."
Isolate/alienate from peers/other adults & secrecy
Desensitization (process used to test child's resistance and engage them in abuse)
Maintenance (progression of acts and checking of risks)
Also in-story Harry compares the Order of the Phoenix to the Secret Police with their spying and invasions of privacy, throwing their enemies in prison without a trial, and their practice of summary execution via Dementor.
Ron is also said to be not a real friend to Harry and primarily interested in self-glorification, though he does at least seem to have some morals unlike Dumbledore. McGonagall, Hagrid, and Sirius are also involved with Dumbledore somehow.