The knowledge, the humility, the maturity, the good musical tastes (*cough* Floyd *cough*), the jokes, the puns, the advice, the babe thread, the debates, the insights, the discussions, the ideas, the lack of pointless aggression, the intellectualism, the suggestions, oh, and TosaInu.

But I guess all-in-all it's the members who contribute and the mods who hold it all together.