This is a more effective control method for issuing currency. It should have been done long ago. Multiple accounts and spamming have affected the development of certain Tokens and hinder the good environment. Only in this way will it be easier to remove malicious people, but This is not the most effective method. After KYC, there will be a lot of fake people involved. In the end, more processing methods should come from developers how to deal with it and make everything fair.