AbigailII: Again, this would be too hard. Imagine you play e.g. 5-win match and because of bad time management (reason can be some family business or easily some unexpected party with friends) you lose one of those games on  timeout. Would you like to lose the entire match ?? To make my argument stronger, imagine that this game is with a very weak opponent and the loss would ruin your BKR :)   

And if someone stops playing many-game gammon match ??
Since you have rook membership, you dont have to care about game positions. So you just make the first move many times and just let the game "sleep" in the "opponents turn" games, where you dont even look too often, so it doesnt bother you.

AbigailII: One big disadvantage of your proposal is that it is too complicated and difficult to understand to somebody who just comes to play Backgammon or Ludo (there are people who NOW have problems with understanding to it, so what would it be after making it more tricky).
Moreover, many people dont want to bother about the game time and just use the automatic settings when sending an invitation. In your system, they would have to set pool: 0/0, move (any), bonus: 0 (or, if it would be automatically set, at least think about it if it doesnt mean something they dont want)

By the way, I dont agree with number 6. Imagine, that you go to work every day (it happens sometimes :)) ) and you have no possibility to play BK when at work. So, you have time to play only in the evening. And you have some games which need to be played today (or they will timeout tomorrow during the day). Now, if the server is unavailable during all the evening, you can lose all of them, this is why you need 24 hours.

AbigailII: ok, thats about two player game ... but, version for three players would be really great !!!
(another question is, would it be easy to implement ?)

MadMonkey: I am not sure if all people would use it right. Some players could easily forgot, that they should turn themselves "on", when they are available again ...

Oceans Apart: The option with bed would be great ... please, Fencer, will you write it for us ?