[rab] Good idea. Maybe there could also be a low probability of it picking a random move with no relation to the one you actually intended to place, too.

Why not replace the players with bots, who post moves from a list of past greats? Then it would be very entertaining to read, and a lot less trouble to contribute to.

And will players without posteriors be allowed to stay? *grabs coat and runs*

Or we could extend the preview facility - pressing the preview button would e-mail the suggested move to all other players, who would then vote on whether or not to allow it.

Yes, and vote on whether the player should be permanently banned or not because of their move.