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.
Since the BKR ranges for different games are different, it would be nice to be able to specify a different BKR range for each game. For example, if you want to set up a tournament in Backgammon and Nackgammon, there is no BKR limit that will identify, say, the top 10% of players in each. If you set the lower limit at 2100, you won't have a Nackgammon tournament, and if you set it at 1800, you probably won't get the backgammon tournament you wanted.