To newcomers and beginners, for those who are just entering the cryptocurrency world and choose to follow trades, I give you a piece of advice: do not follow contract trades, as it will wipe out all your USDT. You may have made some money initially by following trades, but in the end, you will be liquidated in one click, and there is slippage when you follow trades; perhaps they haven't been liquidated, but you might be the first one to be liquidated, which is often a collusion with large traders. Remember, when your money is in someone else's hands, it is no longer your money. Don't do foolish things; if you have money, it's better to buy spot assets, for example, buy $WLD , buy $BTC , buy $ETH . It's safer and you can sleep well.