There cannot be any legal stipulation that speculative trading of cryptocurrencies is illegal; it can only be said that speculative trading is prohibited and that the channels for capital entry and exit are severed. Speculative trading is purely a personal investment behavior, and since the state prohibits it, you will not receive corresponding legal support.
Ultimately, it comes down to one thing: take on all the risks and rewards yourself.
Therefore, Sun Ge can never be caught; moreover, all his schemes are overt. It's just that these investors cannot resist the temptation of high returns and gamble, and when they lose, they start to cry and complain.
It's actually just like in real life when people who buy houses vandalize sales offices because prices have dropped; when house prices rise, everyone is at peace, celebrating, but when prices drop, they start to be unreasonable. If we say that when prices drop the developer should take responsibility, then should they share profits with the developer when prices rise?