I have no "purpose" when I go to a party besides drinking, eating, and socializing. Yet they rarely devolve into tribal bickering and infighting. Human beings h

I have no "purpose" when I go to a party besides drinking, eating, and socializing. Yet they rarely devolve into tribal bickering and infighting. Human beings have plenty of natural regulating mechanisms to keep social interactions from becoming sour of hostile. We've even replicated or adapted many of them to work in pseudonymous/anonymous spaces like bulletin boards, IRC, Usenet, etc.