The forums are NOT the game. If you want to play a forum game, go down to the OTHER games section and play werewolf or find a link to some other game.
The list Geronus posted is an excellent start. I think the above should be turned into a rule as well, something along the lines of "do not post anything to the forum that others need to know in order to play with your characters. always assume that other players don't read the forums and that they can still interact fully with you in-game." - basically, the core idea is exactly that: The forums are not the game, they are not a part of the game, and you don't get to make them, or they'll be taken away (again).
