May as well bring in some people types from around here (and many other game forums):
The snobs - those people who have been around for ages and know everything about everything, and get pissed when they get questioned. Also count as "No fun allowed" people. From my opinion, it includes Zeblote, TwenteFreak, Glass, and those who go nowhere except servers run by veterans.
The code freaks - they know approximately 82 computer languages and make sure everybody knows about it. They tend to not be helpful with people who need help and condescend on others in the Help board
"Gatekeepers" - thanks Badspot, best video ever