It's certain that if he starts selling in large quantities, it could be a signal to everyone. However, if everyone starts selling as a result, demand stagnates, while supply grows exponentially, then a domino effect will develop...and it's possible that he could become a "Luna 2.0". Well...I think he's currently taking out a mortgage against his shares (guaranteed by the shares), so not only he, but the lender has a lot to lose :)