perhaps we should do a deliberate fork? Set up a pool that the diff hoppers don't know about, mine on that with the wallet unsynced - the diff should drop off so we get consistent (~1min) block times with a consistent hash rate, then we have the longest chain once we resync... Just bar any userid that mines for <10minutes?
Go ahead. Those coins would be useless though since all the exchanges and everything else would be on a different fork