Jewel hunt exploit

Since a few weeks our jewel hunt ranking looks pretty funny:

As you see, at the end of the week, I have 3770 points, by doing 500-700 points each day, and I can rank only 71th with this. While we have a bunch of people (most of them from the same guild) who score above 9-10k pts. First I thought all these people (many of them non cashers) went crazy and spend 5k+ balen each week on the Wartune Jewel hunt because they are in desperate need of refinement locks and level 1 gems. 

Then I found this topic:
http://forum.r2games.com/showthread.php?165330-people-being-barred-from-the-game-for-eploiting-a-programming-error

So yeah, there is a nice exploit to jewel hunt, not corrected by Wartune since a very long time. Exploits are good only if they are corrected quickly, or are known publicly. Otherwise, things can get out of control easily.

So the question is, how does it work? Anyone knows? Anyone cares to share it? Do you think it will be corrected soon? How many people were banned for this?