I admit I have been AFK too long a few times, but mostly it was because I was tabbed out doing admin work, and, in most cases, I realised and "pseudo-kicked" myself by leaving the server / rejoining (you don't get the xp and gold if you leave before the end of the round).
If my memory fails me and I do it more often, I'll take a ban, if that's possible.
No favouritism in cRPGism!