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.
I used to be on a "chatprogram" Paltalk ..(Paltalk.com) there you can click a users name and chose file transfer.
I have no idea how it works :) Just a thougth/idea.