Relating to Jacinda's post, what grinds my gears is anyone in the game who has an overbearing sense of pride/know-it-all attitude or otherwise what would be a clear sign of a superiority complex disorder and is used in a condescending manner to alienate and criticize other players who aren't a clone of themselves.
I only wish they could see how embarrassing it is to act in such a way over a video game. Yeah, you're really king of the world for playing FFXI aren't you?