The original question still stands. If the issue of hedge funds shorting GME above 100% is true and (theoretically) hedge funds can pump as they like because they have the capital capacity and act as one entity, how can you regulate it?

It's not so much different that people banding together to pump a stock.

EDIT: I don't defend GME, imo it is a pump and dump. But how can SEC can regulate equally for this specific issue?