It is very easy for platforms to prevent concentrated market makers from harvesting retail investors; currently, many altcoins suddenly spike several times, and then the contracts show a huge negative funding rate. At this point, chasing the high can easily lead to being trapped, and shorting also suffers from massive funding costs. This phenomenon clearly indicates that the platform is not doing anything, allowing malicious market makers to harvest retail investors. The solution is very simple: every project listed on the platform must unconditionally lend spot at low interest rates, with the lending ratio reaching above 50%. This means that any funds can borrow a large amount of spot for trading at a very low interest rate. Thus, abnormal negative funding rates cannot occur, and it becomes difficult for market makers to spike prices several times and then crash them to harvest retail investors. The platform has the responsibility to stop such malicious market-making behavior!!!