Remember, once the shorters start losing some serious money and need to report this back to upper management, they will pack their bags and run to the hills!
Don't forget, shorters don't own the stock when they sell, and they need to buy it back soon after to balance. IF the SP continues to rise (we all resist temptation to sell), then the shorters will be FORCED to buy back in at higher than they sold, making them look really bad and with a big fat net loss.
IMO, a coordinated effort of GXY holders (holding firm) can squeeze them out...!