Yes it's true KYC for bounties are having a purpose on why you need to do it. Alll people are being worried because it is a big risk to give your identification that's why there are bounty hunters are against to bounties that need an KYC, but we can do nothing but to follow the rules.
There are bounties that needs a kyc or a real identification so that they will know who are the bounty hunters. But many people or bounty hunters don't want a campaign that requires a kyc because they afraid to give their personal identity.