In the Whateley Universe, one of the very few things that both sides of the powered community agree on is that family is not to be brought into the matter. For villains and heroes, their life being at risk is one thing — their kids being at risk just because of association? That's something else entirely, and people finding out about it is just about guaranteed to draw the ire of the whole community. And threatening the family of a Whateley student? The lucky ones are in jail for life. And on life support — also for life.
And to a lesser extent, in The Nostalgia Critic's Casper review, the now-Chaotic Evil Casper is horrified when the Critic makes a joke where the film's teenage female lead cheerfully mentions having an abortion to her father.
Casper: *looks wide-eyed*
Critic: ...Okay, that was a little disturbing—
Critic: Okay, okay, it was just a little dark humor, I mean, it's nothing—
Critic: Okay, okay, let's just move on!
Casper:...you sicken me.
And to an even lesser extent, That Guy's reaction to a letter stating that the writer recently discovered that he was part of the Furry Fandom.
Satan talks over a piece in Ask that guy with the glasses 58 saying, "Uh. Yeah, you guys better not listen to this."
He has a few other such moments, such as in one anime review where it's casually mentioned that the hero raped hissister and never gets any comeuppance for it. Also, in a crossover with JesuOtaku where she reviews Master of Martial Hearts, he notes that he wouldn't be caught dead eating at a place called Moe Burger, because even he has to have some standards.
Douchey Mc Nitpick, a troll who loved proving The Critic wrong, decides to leave when the number one fuck up breaks him.
Evilina, the daughter of Satan, is as shocked and repulsed by The Cat in The Hat movie as the Critic.
A later episode had Ask That Guy shocked and horrified by a sender who talked about blowing his budget on crack and using the organs of his neighbour's newborn as Christmas decorations, responding "...Sage? Is that you?"
Doctor Insano: "I may be evil, but at least I'm not full of CRAP!!"
Don't get him wrong, Dr. Insano does enjoy the fact that the movie was about the ultimate triumph of evil and playing the innocent population for the bleeding heart saps that they are, but what irritates him is the fact that all the effort Ferris put into committing multiple felonies and driving Cameron closer to suicide was all for something so petty; a day off from school.
In the review of The Spirit by Linkara and Film Brain, Linksano reveals that- even to him- it is too much to disintegrate a kitten. There are lines that even they don't cross, apparently, and that's one of them.
The Cinema Snob had this reaction to A Serbian Film; while his favorite movie is apparently Caligula and he's watched some pretty disgusting movies, this is the first one that made him feel like he'd done something wrong and illegal just by sitting through it.
It's even deeper: That wasn't "The Snob" having that reaction, it was Brad Jones. Keep in mind, Jones created the Snob character to parody film critics who only like artistic film, but in real life he actually likes a lot of the films he makes fun of. A Serbian Film was too disgusting for even him.
O'Malley: They will all taste oblivion! Which tastes just like Red Bull... which is disgusting!
This also seems to be a factor separating Agent Washington from The Meta on a moral scale in Revelations. Wash is more of a villain due to circumstances, and seems to honestly think he's doing the right thing, at least at first, but the Meta's just a loon obsessed with getting more power for himself.
While there are dictatorships, communists and fascists, secret polices, many wars, nukes and even worse weapons, the Chaos Timeline has no equivalent of The Nazis and the Holocaust.
It is revealed in an episode of Merry Zodmas, that General Zod believed that chopping down a tree and taking it inside to decorate is completely evil. He would use humans instead.
In JesuOtaku's review of Eiken, Bennett had to admit that the loli with the huge rack was a bit too creepy even for him. After JO complimented him, he turned right back around and suggested she wouldn't be as offended if it was a Gender Flip.
On /v/, one can occasionally find "rage threads" where /v/irgins attempt to piss each other off. While these threads may mostly consist of things like people on Facebook being stupid, Call of Duty fanboys, or My Little Pony fan art, you may run into something that could be considered morally wrong.
On a lighter note, pretty much any kind of sexual activity, real and fictional, will barely be blinked at, but consensual, normal, loving sex is jokingly treated as obscene.
/a/, the Anime and Manga board, has a code of honor regarding spoilers for Ever17. The same board that just loves dropping spoiler bombs on current hit shows actively discourages spoiling their favorite Visual Novel to newcomers.
In the SCP Foundation, when Dr. Clef discovers that a guest researcher has been feeding children to SCP-682 just to see what happens, Clef turns around and feeds him to the monster. For those who don't know, Dr. Clef claims to be Satan.
The SCP Foundation has an Ethics Committee. They may seem ineffectual overall because the SCPs are so dangerous that whatever it takes to control them is by definition the lesser of two evils. In fact, their scope of power overrides the O5 council, meaning they have access to all the expunged data and are the ones who give the final approvals. They were also the ones who designed Procedure 110-Montauk, with the implication that it's the least horrible thing they could do to contain SCP-231.
Speaking of SCP-231, trying to prolong Procedure 110-Montauk is a good way to get your head blown off.
In the Global Guardians PBEM Universe, Evil Overlord and Master Villain Lord Doom was so disgusted with the innocent lives lost during the September 11, 2001 attacks on the World Trade Center that it was his agents who, within 48 hours of the attacks, had determined precisely who was to blame, and where that person could be found. He turned Osama bin Ladin over to the UN virtually wrapped up in a bow.
The version of My Little Pony: Friendship Is Magic's Prince Blueblood on the "Askblueblood" Tumblog is even more of a Jerkass than the show version, to the point of possibly qualifying as a Politically Incorrect Villain. He's hugely misogynistic. He has claimed that Princess Luna's special talent is being fat and eating and that her cutie mark represents the moon after she was done with it, as well as trying to get her kidnapped by pirates. (though Luna has tried beating him with a baseball bat, making this more a case of their family dynamic being Royally Screwed Up) He rarely passes up a chance to insult or abuse Rarity. He thinks kids who go to school are nerds. However, when someone suggested that he rape and murder Sweetie Bellenote Yes, someone actually suggested this, his response was a blank stare, followed by an image of the "Delete your account" page with the password filled in and the cursor over the Yes button.
Encyclopedia Dramatica is well-known for being flooded with fetishized pornography, real-life depictions of mutilation and torture, racist/sexist/homophobic commentary and mercilessly exploiting and demoralizing random people on the internet For the Lulz. But pedophiles and animal abusers surpass even furries on the list of people "E Diots" despise. If they're ever brought up in an ED article, expect them to be described as sick fucks, subhuman, the scum of the earth or some variation of the three.
Additionally in Season 6 when he learns that Chaos Theosis plans on shutting down Halo's OMN permanently, Chief helps Arbiter in taking them down since if he doesn't, it'll mean no more halo for himself.
In Tv Trash Count Sigeeyai making Chris watch Brickleberry is a crime against humanity that not even he is capable of
In Demo Reel, two of the SWAG leader's minions leave in disgust when they find out he kidnapped someone and left them in the forest to die.
Some of the rowdy admins on Facebook pages post stuff that mock and try to make events such as 9/11, the Dark Knight Shooting, suicide victims, deaths of popular people, Progeria, and such that are usually considered really offensive, but none of them have really tried to view the Sandy Hook Massacre in a brighter light.
Although they aren't really popular or widespread.
Something Awful: Dungeons & Dragons: Minerelle is someone who is perfectly willing to kill, lie, and betray for the slightest of reasons, but apparently draws the line at using sentient beings as property when Algernon suggests using a shape shifter locked into the shape of a sword as a weapon. Gibnaf points out that there is probably video evidence to the contrary.
More like Jerkass than 'evil', but Dave of DSBT Insani T does not like cold-blooded murderers like Killer Monster, although, as Portica points out, that doesn't really mean much.
Light: Oh Ryuk, I haven't even begun to scare you yet!
In Worm, the supervillains of Brockton Bay include the Neo-Nazi group Empire 88, the Diabolical Mastermind Coil, the mercenaries of Faultline's Crew, and the Undersiders. However, they all look down on Skidmark and his gang, who are incompetent drug-dealers who sell to kids. More in line with the spirit of the trope, they are also all willing to join forces against psychopaths like the Slaughterhouse Nine.
Bonesaw, a member of the Slaughterhouse Nine, gleefully delights in inflicting Body Horror of the worst kind, but in her own words, even she isn't crazy enough to try to clone an Endbringer.
In Todd in the Shadows' "Top 10 Worst Hits of 2012", when a VH-1 narrator describes Train as "the quintessential American band", Todd responds, "Holy crap, VH-1, I don't think I've even heard Al-Qaeda say anything that anti-American!"