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.
Removing unused names upon request wouldn't reduce bandwidth at all, but would help solve the other, unrelated problem of people wanting to use names that may be already taken by inactive pawns.