Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
grenv: In my opinion it must not be too difficult for programming an impossibility to play rated games against ourself. A simple query at the players database could compare the real names behind a nicknames: if equal and rated: stop!