unsafe, just like Ponzi scheme, these platforms are actually fund-raising platforms. As soon as the funds are broken, the boss will run away and people will leave the building empty. There have been several accidents on this type of platform, and there are many online complaints. If I want to try it, please remember to invest less. Don't think about making money, just make sure you are cheaper when you refuel. The more you invest, the greater the risk. If this type of product is good.