It's a "social" game... with different maps, realms and setups. With differente kind of players, chars and interests. It would be difficult, especially in the case of secessions, to set it in stone.
This. The rules basically boil down to "don't cheat and don't ruin the game for other people" - in a player driven game like this it's impossible to do anything other than look at complaints on a case-by-case basis.