IMHO, for me, KYC is not a problem if it was required to receive a decent payment why not, But it should be announced earlier, preferably in the bounty thread so that the participants are aware of that requirements, But if the KYC was declared during the last hour after the bounty was finished, I think we should think about it. because it is already a red flag. The bounty and airdrop hunting nowadays are changing dramatically and many people want to do KYC just to get paid with their airdrop and bounty rewards.