"There are many anecdotes about thriving social sites that killed themselves off by legislating against fun and forcing their users into exile to find the activities they had been improvising “incorrectly” in the site they had to leave. A better plan is to support the behaviors your users are engaged in. Let your users tell you what the best and highest use of your interface may turn out to be. Don’t be so arrogant as to assume you know everything about how the social dynamics you’ve unleashed need to evolve."