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.
pedestrian: It was removed because I did some changes to the game structure database and the algorithm of determining visible public invitations had been negatively affected by the mentioned feature. It is possible that I will reactivate it in the future but the overall performance is always the most important thing.