very interesting link, thank you. The exact language is
> Although some short squeezes may occur naturally in the market, a scheme to manipulate the price or availability of stock in order to cause a short squeeze is illegal.
Indeed. It was all done out in the open. Someone said "if enough people buy and hold, there will be a short squeeze. For this reason, I'm long GME", which probably doesn't represent a scheme or manipulation, it's just simple facts.