From an article which talks about this topic that explains what I was trying (and failing) to say:
A perfect storm of factors come together to engender the rudeness and aggression seen in the comments' sections of Web pages, Markman said. First, commenters are often virtually anonymous, and thus, unaccountable for their rudeness. Second, they are at a distance from the target of their anger — be it the article they're commenting on or another comment on that article — and people tend to antagonize distant abstractions more easily than living, breathing interlocutors. Third, it's easier to be nasty in writing than in speech, hence the now somewhat outmoded practice of leaving angry notes (back when people used paper), Markman said.
My only real reason to respond to this thread was to poke fun at paladin and gnome haters. Speaking of which, we just got this from an old D&D buddy: