Recently, a blockchain practitioner revealed that “Xibu Software has no physical business, and the essence is the fund disk. It has designed multiple tiered reward mechanisms, which seem to be free to make money, but many people buy it for upgrade rewards. Candy, and the interest of the user through the transaction transaction fee distribution to the high value of the users, are based on the micro-commercial model to promote, only a rapid development, in fact, the bubble is very large." It is reported that the fun step The gimmicks that used the blockchain attracted a large number of users. In early March, the company closed its trading center, which led to the loss of many sellers of candy-selling users.