It is funny you mention that about peer pressure and WoW. My cousin (who happens to be one of my best buds) is a WoW addict. The few times I manage to get him away from it, be it a movie or bar, people he usually plays with CALL HIM UP and practically beg him to log on.
Not that I think it's weird that you'd develop social connections from a game (or a message board ) but to be at a bar and have 3-4 phone calls to get your ass online is a bit much. I felt like I was watching the Guild.