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.
I do not know if it has been proposed before but I think that automatic removal of players that have signed up to a tournament but are inactive for 30+ days at the start of the tournament would help avoiding the phenomenon of people simply not showing up to play in a tournament they have registered for.