I have to say that exchanges doing this with altcoins have already lost their bonuses. With Bitcoin and Ethereum being pumped like this, most of them can still reach new lows. It's uncertain how much Bitcoin and Ethereum can rise in the future, and we don't know how much suffering in terms of time cost we have to endure. The risks are also high. If Bitcoin falls below 112,000 at this point, it's over. The risks will be too great and altcoins will completely lose their bonuses.