
The site flags when a player has reported that they used exploits. Would it be possible to add the ability for one person (probably a registered user) to flag another's character when they find something like that which is highly suspicious? To avoid exploitation, I would recommend limiting the number of times a person can do this - say, once every 24 hours at most - and also requiring an explanation of why it was flagged, so you can decide whether or not the flag should stay in place, or contact the character's owner for an explanation. Then, any flagged characters would remain out of the standings until/unless the problem is fixed.
Just a thought.