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.
What is the difference between using a BKR to filter your game opponent, and a 'speed of play' rating to do the same?
I know you master chess players would not like to play begginers all the time. And begginers do not want to play masters. Why can't slow and fast players have the same options???