Well my first forum experience was with pokefarm and that community was great for getting me started but the crew I joined in with on fusemon (and then we subsequently moved to a proboards forum because fusemon died) is probably where I got my best experience with forums. Pokefarm was great but I tended to get banned a lot.

EDIT: The permaban? Not a clue. Though the guy who I was talking to at the time the permaban took place said that he got permabanned as well because when we were exchanging pms we made "crude jokes." And I can tell you that it wasn't even that bad.