Munchkin03, thanks for clarifying.
I don't really care about cliques or inside jokes. I figure that for a variety of reasons such as geography, age, personality, etc. certain people will hit it off and get along better than others. Friendships form, and experiences are shared both on and offline. That's great.
My concern is just the mean stuff. That is all. I agree with you that sending PMs and notifying moderators can help resolve a lot of problems. I think that this thread has become sort of a collective venting in an attempt to air grievances and resolve the problems that many people think plague GC.