Yeah, I've met some really ignorant people on the various Internet forums I'm a member of, and I can't stand it when I meet someone who just refuse to admit that they are wrong. I mean, I never claim to know something I don't know, and therefore I rarely lose those kinds of arguments. But some people seem to think they know it all, and even when people prove them wrong, they won't admit it.

Some forums are okay, with plenty of mature and intelligent forumites. But some forums are so infected with trolls and newbies that it's almost impossible to have a normal conversation. The worst forum I've been to has to be the Guitar World forum, I have not seen a forum with less moderation.