The problem for the big pocketed folks is that unlike the gold futures market or the stock market you can't naked short BTC. You actually have to have some to sell or borrow.
This makes the market much harder to control hence the weekend/holiday attempts when people can't get fiat onto an exchange.
yes, but you can short BTC with leverage, even high, almost naked. And if you have deep pockets or a money printer you can short forever. But I guess that now the lizards are undecided between milking and killing crypto.