Currently I do not see any advantage to do KYC, the idea of ​​this is decentralization and maintain anonymity, the tendency of governments and banks has always been to end anonymity for them to have control.

The only advantage of KYC that I see is for the ICO, IEO projects, which is taken as a protection measure to avoid scams that have fallen so much some investors, however there is the latent risk of using that data for other purposes or worse still sell them .