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.
MadMonkey: As long as this feature isn't implemented, you might have a look at Resizable Textarea, which is a firefox extension that let's you freely adjust textboxes' sizes with the mouse. (It somehow doesn't work on the inline reply-box on the boards)