Yes, I have participated in some ICOs that need KYC, but not every one makes me happy, I was deceived. Therefore, the view on KYC is somewhat paranoid. Many ICOs are deceiving. There are no substantive projects in progress, just to defraud people's information and attention. In my opinion, every ICO appearance should be cautious and reject those deceptive behaviors, so that KYC can really play its role!