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.
... about getting a "return reciept" on a message sent to a user - actually no, it could come in useful - for example I'm waiting on 1 person to enter a couple of the "fast start chapionship" tournament, which I sent them a seperate message to ask if they were interested or not, they have been on but they have not signed up or answered. Since this person has actually qualified for this tournament, I don't want to start it without them (unless they don't want to play.) But as right now, I'm not sure if they don't want to play so they are ignoring the message, or if they are the type of person that just does not read their message box very often.
Or are you talking about the "Deleted message" post - not joking about that either - it would be nice to know if post get deleted (or even edited) - it's annoying to see a post which is a reply to another post which is now gone.