The only thing you and others upset with the bear raid can do is file a complaint with SEC. If I were to file one I would definitely point out the similarities to others such as DNDN and PONZ, maybe they can track down a common "investor" and eventually end this tactic.
MM's had every right to cover and even if you complain to the SEC
they will tell you that the MM's can short stocks to make market and by doing so, they have every right to cover those shorted shares since it was done to make market.
so it would be in their rights as a market maker and there is nothing you can do about it. sorry but true.