A guy from YouTube to who I'm subscribed makes some videos about the lulz side of DeviantART which I find really funny to look at, however very recently he did a video about 8Horns and how he posts child pornography on DeviantART and how outraged he is that this dude has been on DA for 12 years and no actions were done to him. The backlash from the video was gigantic, causing him to, from what I can see (Mostly from the avatar removal) simply leave DA. I think he also removed the very guilty pictures he had out there too, but I can't be sure of that since I never looked at his DA profile before, leaving this journal as a memento.
Just to clarify, the guy on YouTube never sent the viewers to attack him, he did send them to report/flag the content. However, he did say that these kind of people should be arrested and jailed.
While I don't agree how drawing porn of young characters should get you arrested, and his art being called child porn for the matter (I actually read the Protect ACT and it specially states what is child porn or not, and drawn pictures of cartoon characters that are not human are not considered child porn) I did agree with how this kind of stuff should never have been uploaded on DA since the rules specially mentions to not upload any kind of pornographic pictures anyway, and people actually told him just that many times before.
He apparently received death threats from people, and the guy who did the video has put it on private, but the harm has already been done, and probably was this bad for 8Horns to just leave DA for good, thought the journal kind of makes it seem like he won't leave at all, but the avatar removal is kind of suspicious still
Updated