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.
On a more general note, I think that we need a defined procedure for changing the rules of a game. It has been done in the past with new games that had an obvious defect (e.g. Cloning Gammon), but since then Fencer has been very reluctant to make changes, even when there were strong arguments for them (promotions in Recycle Chess come to my mind, but also suggested changes in some unbalanced games).
I am aware that changing game rules doesn't go without short-term problems (mainly, some people won't remember whether they are playing under the old or the new rules), but I think that on the long term the quality of the games offered here is much more important. After all, aren't the games what makes us come here ?