There are subjectives, and then there are these. While you may believe a work fits here, and you might be right, people tend to have rather vocal, differing opinions about this subject. Please keep these off of the work's page.
Examples (more-or-less in alphabetical order by name of LPer):
DrunkGoomba's LP of Ace Combat 4. The quality is awful and does not improve over the course of the videos; his gameplay is mediocre, often pulling rookie mistakes and falling for basic enemy tricks, and subsequently complaining about them much to the chagrin of the viewer; his commentary is awful and irrelevant, often rambling about utterly pointless topics in his high pitched voice, which after a while becomes extremely grating and painful to listen to. There are few complete Let's Plays for this game, and this clearly isn't one of the good ones.
While Phil Burnell (DarkSydePhil, DSPGaming) is divisive at best, he's made several extremely poorly received Let's Plays:
His playthroughs of the first three Metal Gear Solid games, in order: Metal Gear Solid 2: Sons of Liberty, Metal Gear Solid 3: Snake Eater, and Metal Gear Solid. He constantly berated the games for its controls or unintuitiveness, when it was clearly his fault for ignoring tutorials, important cutscenes and people giving him advice on what to do. He attempted to brute force his way through everything, never considering stealth. It even took him 25 minutes to beat Sniper Wolf in the first MGS. He even tried to battle The End with close-range firearms. He brought close-range firearms to a sniper battle. The only thing he even paid attention to in all of the games were the female characters' breasts and buttocks, and constantly made juvenile and unfunny sex jokes, even in the most serious moments (moments that you shouldn't be laughing at or joking about). He shrugged off all comments that pointed out his mistakes as trolling and even insulted his fanbase a couple of times, which caused him to lose a significant amount of subscribers. A compilation of the worst moments of these LPs can be found here, here, and here.
His playthrough of Metal Gear Rising: Revengeance, while not as bad as the other MGS "playthroughs", is still quite bad. He struggles to defeat some of the easiest bosses, like Blade Wolf and Sundowner. Him fighting Sundowner is especially painful, as he doesn't cut the shield where it shows him to, and keeps trying to charge at the shield, despite being repeatedly told over codec not to attack the shield, and he keeps calling the battle a "puzzle" and cutting the shield a "puzzle slash". He also spends quite a few videos on the Monsoon battle, not thinking to use the parry function, and constantly blames the game for his mistakes as always. Watch a fail montage here.
His playthrough of Assassin's Creed III caused another fanbase meltdown, leading many to swear off the channel permanently. The reasons why this occurred were numerous (though some were no fault of his own). After being unable to leave his condo during Hurricane Sandy, Phil and his girlfriend Leanne (who was unable to take a train back home) bought the game and began playing - a sharp contrast to his previous playthroughs, which mainly had him provide solo commentary. Much like the Snake Eater playthrough, he ignored basic commands and got stuck on several missions for multiple parts. This, combined with Leanne telling him what to do (and their getting into verbal sparring matches over the situation) led to widespread hate comments. Even Phil telling everyone to tone it down in a channel update did nothing to abate the flames, and some fled the channel for good.
His playthrough of The Witcher 2 attracted a periphery of hatedom from various forums, but it was his own fanbase that really attacked for completely ignoring the tutorial section, spending many videos trying to figure out how to do basic actions in combat, and generally raging at the game for his own mistakes. He ended up disabling the comments for most of the playthrough due to this widespread backlash.
His playthrough of Dark Souls is pretty painful, especially if you're a fan of the game. Pretty much every aspect of what's wrong with him is here, from him refusing to try and learn the game's mechanics to constantly dying from his own mistake (and while constantly blaming the game). By the end of the game he had to rely on summoned phantoms to get him past boss fights just because he wouldn't try and learn anything about the game, which is counter to the whole point of it. There's even a compilation of how bad it is.
One day, Phil decided to take fan requests and do a playthrough of Spider-Man for the PS1. At first, it didn't seem too bad, he was enjoying the game. Then he gets to the level where you chase Venom and due to his refusal to adapt to the controls, ends up losing multiple times and raging. From this point, the rest of the playthrough is crying about how "terrible" the game is and claiming the people who requested it were trolling him. The entire time he takes his opinion as fact and tries to "sympathize" with people that grew up with the game, believing they only liked it out of nostalgia, and basically told fans he doesn't care what they say by claiming he didn't read any of their negative comments. As for stupid moments, he spent at least 3 videos on the Mysterio boss fight (one of the easiest in the game) and didn't understand why the game wasn't reading his memory card, not realizing he had a PS2 memory card in the slot, not PS1. You can see the highlights here. His constant shit-talking of the fans, whining about the game (specifically the camera controls for the Playstation 1) and especially his forced passive-aggressive laughterwill get you on your last nerve.
On his playthrough of Bayonetta, he gets stuck in the part at the very beginning where you have to follow after the angel that takes Enzo (or "Fat Bastard" as he calls him). Even though the game makes it abundantly clear where it flew off to, Phil runs to the opposite direction and tries shooting everything in sight and repeatedly trying to jump over walls that he can't jump over, and whines about how the game "didn't make things clear", and is "broken". He gets stuck on this part for seven and a half minutes. Another notable example of his stupidity is when Bayonetta examines a faraway ledge and says in text that she needs to use her witch powers to get over there (with "witching powers" blatantly highlighted in red), but still doesn't understand what he's supposed to do and once again claims that it "made no indication on what to do", and forgot that you could run on walls even though the game specifically tells you about the wall-running mechanic right before this, and even has a boss battle where you use it. This time, he gets stuck for eight minutes rather than seven. He also sticks with the whip as soon as he gets it for the rest of the playthrough, and hardly ever thinks about changing his strategy, despite hundreds of comments telling him to stop using the whip and use a different weapon. He also spends an entire video raging at a side-mission that he is failing simply because he isn't trying to come up with different strategies on how to beat it, and blames his failures on the developers. Watch people rip him a new one here.
His most infamous moments are when he plays fighting games, especially Street Fighter. Keep in mind that he's been playing Street Fighter for more than a decade way before he did Let's Plays and he's still not competent in them. His attitude is the worst, oftentimes complaining that he's losing because the inputs are being "unresponsive", the opponent is cheating or the online mode is laggy (never mind that he has a really good connection) and will yell at the screen about what a scrub the opponent is for using "cheap moves" even though those scrubs are kicking his ass; he will also insult other players by telling the viewer what a loser his opponent is for having so many rounds playednote Look who's talking.... He's also a tournament player where he openly insults other contestants and boasts about being the "top pro Street Fighter player in the US" because he technically won in a glitched port of Street Fighter.
His let's play of Ratchet & Clank is extremely frustrating to watch through. He continuously uses the wrench on powerful enemies when he should've used his guns more often. And as usual, he blames the game's camera, clipping, and so forth for his own clear to see mistakes. Worst of all, he continues to use the same tactic that didn't work the first time on most of the enemies and his complaints of checkpoints will test your patience. Watch the train wreck here.
His playthrough of The Last of Us (watch here) is also quite frustrating to watch, especially the Winter segment. The rest of the playthrough is full of incompetence (let's just say he hasn't gotten any better at stealth since his Metal Gear Solid playthroughs) and bad, juvenile humor (it's not shown in the linked video, but he even makes tasteless jokes during Sarah's death scene), but the Winter segment is when it really hits the fan. In the bit where you (as Ellie) need to get past several goons and make your way across a gap via a thin board up against a rockface, requiring Ellie to slowly sidestep across with her back to the wall, he tries to run past all the enemies and get across the gap, and wonders why he keeps getting shot up during the slow process. (Of course, he blames Ellie for taking too long, even yelling "What an IDIOT!" of her - continuing his trend of blaming fictional characters for his own mistakes.) A little later, he runs around a lodge, with enemies chasing him, looking for an exit and complaining that he can't find it - even though it was in plain view. And that's not even getting into his bizarre Troy Baker rants.
His playthrough of Batman: Arkham Asylum, found here, is atrocious. He flounders in combat sections and fails at puzzles, that much is to be expected, but the worst part of it is he is constantly held back by little things that aren't even meant to be puzzles. For example, at one point you get a neato gadget that lets you cross gaps. Phil has seen a big gap which is preventing him from getting into a particular section of the level where he knows he is supposed to go. Does he use the line launcher? Yes, after he kerfuffles around for ages, complaining, trying and failing to get random trophies, and complaining some more. And don't even start with what happened when he was supposed to save Gordon from Harley Quinn. (Strangely enough, he didn't actually complain about that one, although he did say the "puzzle" was "tricky").
EvaXephon is one of the most infamous LPers. His Livestream of playing games are generally terrible (he dies so many times that it isn't funny), and his tales are often worth a few laughs...
He's been getting banned from every stream site because he pirated and streamed Red Dead Redemption before its release. Everyone who hated him, and the people he banned who kept trying to tell him to stop streaming it, reported him to Rockstar.
He streams games before release date... like Just Cause 2, where he played the pirated game and dies on every single attempt to kill one of the bosses.
Imperial Terra is another hated Livestreamer, when he wants someone to watch his stream. He spams his thread with images that are generally not work safe, rather than just letting it run its course. Although on average, video game streams on 4chan are normally frowned upon due to the amount of spam that the topic creator makes to garner attention.
iJustine's Let's Play of Portal 2. She gets stuck on the easiest puzzle of the game for eight minutes! The worst part is that this is after the puzzle that demonstrates the way portals work to you. iJustine got sick of everyone telling it like it is (e.g. "This Sucks"), and set the whole Let's Play to private. However, you can watch a tolerable version here and it's still available (all parts) on Viddler starting here.
The staggering idiocy is brought into full view in this video. On the right: iJustine. On the left: the video author's 12 year old sister who has no knowledge of the Portal series and little gaming experience in general (certainly less than iJustine claims to have). Watch and be amazed.
Not to mention that she manages to ignore most of the plot while playing it. There may as well have been none. She even ignored the famous "Lemons rant," one of the funniest parts in the entire game! To paraphrase a quote of hers: "Who's Caroline? I thought I was Caroline."
At no point does she refer to any of the characters by name, calling Wheatley "Mr. Eyeball" and GLaDOS "the potato". This is extra insulting since she has the subtitles on-screen telling you the character names!
It only gets worse. Whenever she does refer to something by its proper name, she "corrects" herself and says the made-up name. She basically has a party in the middle of one video and they all end up talking over the aforementioned lemon rant, and given her lack of reaction to the rest of the dialogue, it probably made no difference.
The now long-gone early works of Linkrulezall. Blatant Hypercam 2 watermarks that sometimes cover important details (made even worse by his frequent references to said important details), single-digit framerates, audio that was way too quiet (to the point where the game audio was downright inaudible, and you could barely hear his commentary), and banal commentary that consisted mostly of Link being a Captain Obvious. Topping all that off, he had a habit of failing to finish many of the Let's Plays he started (the only one he finished was his WarioWare, Inc. LP). To be fair, he has gotten better.
The ultimate lowlight was when he made a "Boss Guide" of Super Noah's Ark 3D, when he only uploaded one part, and it was plagued by all the same problems mentioned above, but with a framerate of about 1 FRAME PER 3-5 SECONDS!
MasterknightDH's LPs are severely flawed. His speech is difficult to interpret since he suffers from extreme Elmuh Fudd Syndwome (think PsychedelicEyeball slurring), and his commentary tends to be either banal or whiny about his perceived 'game balance' issues. That alone is terrible, but he also has a colossal ego; he can't take even the slightest criticism or insult, and usually ends up shutting off comments or ratings. He's also infamous for his rant videos, where he demonizes anyone who disagrees with him (at one point even saying that the girls who live in his area deserve to be RAPEDbecause they mock himand dislike him).
MaxiMaxi10 has 1,551 videos, half of which are him just doing random crap around the house. His Let's Play videos are where we get into the majority of this entry. He does camcorder LPs where his camcorder's at a bad angle and you see the right third of the screen. His commentary's boring, and you often find yourself watching the action figures on top of his shelf to see if they'll be more interesting. Even worse, whenever he's criticized, he pulls a Christian Chandler and blames all his faults on autism.
Quadraxis14's early LPs of Contra III and Kaizo Mario World. Contra III was filmed on an awful camcorder, and features an inexperienced Quadraxis stumbling over commentary and making really awful jokes. Kaizo Mario World was recorded competently, but he constantly reloads save states (causing his emulator's save state screen to flash on the screen constantly) and still hasn't gotten humor down. Retsupurae riffed on several of his videos, and ended up admitting in his God Hand LP that he's greatly improved. For his part, Quadraxis found the riffs hilarious.
Queenie Z. Whether it's her severe Girl-on-the-Internet syndrome, her unfunny commentary, her constant use of outdated memes, or her shrill voice (with retainer sucking to boot), you'll share the RPer's pain.
Retsupurae has covered the first two parts of her Eternal Darkness: Sanity's Requiem LP. If you check the videos out, you'll notice that Part 2 has over 30,000 fewer views than Part 1. For added irony, the video description of the former says "You're watching Part 2? Didn't Part 1 scare you off?"
She's gotten somewhat better over the years; while it's unlikely she'll ever live down the aforementioned LP, she has apologized for it and considers it something of an Old Shame.
SuperCrazyHealthBar is a famously awful LPer. Despite his excellent picture quality, many of his videos suffer from severe audio clipping and his commentary is abysmal, consisting mostly of him rambling aimlessly about things that don't have anything to do with the game, occasionally dipping into a weird demonic growl and shouting at the screen. He's so terrible that Retsupurae believes him to be a troll, although it's never been very clear.
The now-closed YouTube channel teddybearmassacure. His video quality and skill was subjectively decent, but everything else was abysmal. Many of his videos had loud noises in the background and obnoxious co-commentators that sounded like ten-year-olds. His commentary, meanwhile, was irritatingly banal, with "jokes" consisting of Seltzerburg-style pop-culture references and stale memes. He would've probably been small-time if Retsupurae hadn't dredged out one of his older videos. His improvement over the years before he closed his channel was minimal at best.
The entire play through of Resident Evil 3: Nemesis by YoVideogames is extremely painful to watch. The player winds up overlooking or plain forgetting about certain key items several times, forcing him to backtrack just as many times and leads to time being wasted because the player didn't bother to edit it out. The player also winds up trying to be fancy with conserving ammo by attempting to avoid as many enemies as he could, which leads him to blindly running into zombies and other monsters and takes unnecessary damage because of it, which also leads to a ton of deaths that could have been avoided and it also leads to the player redoing sections of the game over again without editing it out. The lack of edits to save the viewer's time is very infuriating and gets even worse when you see that the player DID attempt to speed up (literally) the process of the viewer catching up a few times but then just forgets about it for the rest of the LP. On top of that, because the player never bothered to read the instructions (game manual and in game manual), which leads to moments where he ignores explosive hazards that he could have used to kill zombies in one blow and how to combine gunpowder for different effects and saving inventory space. The puzzle sequences aren't any better as the viewer is forced to watch the player bumble about in solving them for over 5 minutes. While the player tries to excuse his bad playing style on lack of play time on the game for several years, it goes out the window when he declares the game to be bad at the end of the LP and blames it on all the screw ups he had to endure.
Similarly, the Let's Play of The Legend of Zelda: Ocarina of Time has Max piloting the control for most of times. Since Max tends to stop playing the game for weeks or months he tends to forget even basic moves, not to mention it took him literally weeks to learn how to use the lock-on and block properly, watching him fighting Lizalfos and Stalfos is particularly aggravating. Max also tends to unnecessarily complicate almost everything and screw up even simple puzzles. Wasn't for Matt helping him at almost all times (in the beginning he refused any help and tips at all) a Rage Quit was almost certain to happen.