CA's Wall of Shame, for 10/30/09, showed a total of 43 players banned, 21 were Trainees. IMO:
Trainees in any room except beginner rooms are most likely banned players with skill coming back for more. In order to lessen your chances of a hacker in your room by almost half, wouldn't it make sense to kick all T's before the game begins?
I'd like to hear what you other EM's think...