Character renaming ("/renameme") could be restricted to use once a day per account, for example and it would cost 5mils and player would be temporarily banned for 1 hour (so he can't re-engage for example). In that case I seriously doubt it could be abused. And all commands needed for that are already there (removecash,kick,tempban,rename), they just need to be executed together in a new command that would be allowed to everyone for use.
But back to topic, any skilled programmers out there? If you are not sure, just download the latest flhook plugin version and look at the documentation, how to create plugins etc. It's very well described.
