I am going to be strict on cheaters. No second chances, (assuming I have actual proof obviously). I don't think there will ever be a Mir server, 2.3 or otherwise that is cheat free to be honest. It's in some people's nature to find the easiest way to do things and if that means cheat, that's what they will do.
Like I said, there is a zero tolerance system towards cheaters / bug exploiters. The warnings will be in the server shouts in game and on the forums. Anyone seen in game cheating will have the character deleted on the spot. No if's, no but's.