I think its just straight up fraudulent that bounty managers or projects require bounty hunters to submit passports for KYCs. This is especially wrong when it is not stated that there would be KYC at the end of the bounty. It's just a way to reduce bounty payment allocation or use the documents for malicious activities
I totally agree with you, mate, that asking for supporting documents for verification for bounty participants when it's finished is one way of not wanting to pay or reducing the existing allocation.
we appreciate the good goal, which is to reduce participants who cheat with multiple accounts.
bounty hunter should have been informed at the beginning, when the bounty has not yet started.
not in an unfair way where there is indeed another goal by reducing the bounty allocation.