I never found a game which has that much civilized and mature people in it compared to all other games I have played. A very wrong PM, whine or insult here and there are the most unexpected events to occur in it. If you can name me another game as fun and as mature as this one or better, point it to me because I don't know it yet!
So, just don't play along with stupid PMs because - and I quote from whom I don't remember "Never argue with an idiot, they will drag you down to their level and beat you with experience".