I followed with real money and still got liquidated. To be fair, the money earned from rebates is definitely not as good as the money from profit sharing. His 20% profit sharing is considered super high. He just wants to quickly double his investment by relying on large capital, high leverage, and aggressive Martingale strategies. When the market is mild, he can recover his losses and make a profit with a rebound without taking a one-sided position. When the market is violent, like today, he gets liquidated 3 times, purely a gambling strategy. His mindset and operations determine that he is a gambler rather than a trader.