There's this new guy on deviantart called !markfuckingruffalo
(well, I don't know if he had a previous account, but anyway) and his only reason for having a deviantart account is so that he can tell people how crappy their drawings are.
He says that he knows he can't draw so he doesn't bother, and instead he just goes around telling other people that they can't draw and that they should stop trying.
Some people are even supporting this! They send him links to pictures so that he can comment on how 'bad' they are. D:<
I found about this guy because he commented on a picture by one of my friends.