MMO Roma Victor has taken punishment in virtual worlds(warning or banning players), to a whole nother level.

A player convicted of ganking in this MMO, which aims for historical accuracy, has undergone the standard Roman punishment of crucifixion, hung from a cross for a week in-game. The penalty also carries with it a ban. Hopefully this will dissuade other players from following suit--the public nature of the punishment serves to highlight the crime. If making an example of miscreants works well, perhaps other online games will try the idea.