You know what kills the godmodder? A script that enforces a player.kill = true; to all the players in the server. Ofc that also kill everyone else, regardless of HP. Alternativelly you can run player.KillMeForGood(); which will essentially perma-kill the player to turn it into a ghost, regardless of whether that player is hardcore or not.
Another idea which is easily affordable through hacking would be to create a tile outside the boundaries of the world (even better, in the top-left corner where both coordinates are negative), I believe that does normally crash the server.