Some of the chatter on Twitter seems to be that the problem with last week wasn't because of "Shorting/Naking Shorting" but (Canadian?) flippers selling and UNaccumulating some of their shares.
I never knew flippers “accumulated” shares and I never knew that blatant 10K share whacks, and obvious buys on the ask then seeing the ask undercut by a tick was “unaccumulating” share signs. I’ve known it, to be in fact, something different.