How do you know they didn't email their opponent? Haven't you ever gone away for the weekend? Have things going on on the weekends?

If everyone has to play the games according to your schedule we'll wind up with less people than we have now. Brilliant.

Also, I have no problem with letting the computer play your games. I much prefer the GM side of PB to the manager side and can understand people choosing to not play their home games.

There is some flexibility here; to eliminate it because you decide everything has to be done your way would be foolish.