I believe that KYC is not needed for cryptocurrency at all, because cryptocurrency loses anonymity
Many countries that legalize crypto require KYC now for investors for team records and reliability of the company, but it is not needed in Airdrop , only few buck will you get and will be need to risk your identity is quite impossible.
They require KYC not for team records but to know their customer and preventing any kind of money laundering since crowdfunding tend to be taken advantage of as a way to launder illegal money and that's not good.
However, justifying the use of KYC for mere airdrop is wrong on so many levels because I believe that most of the airdrop created by unreliable strangers.