So introductions to KYC in a bounty means the bounty manager is a scammer? There are few moves like this from some old bounties and it's the project team fault not the bounty manager, if the team decide to change rules there is nothing that the bounty manager can do about it, if you don't want to work for nothing you will have to comply
Some bounty managers have not properly contracted the agreement and that is why some come in the middle to ulter agreement. But KYC is not needed for bounty to be proven as genuine. Bubbalex in his bounty has not requested for KYC but email verification and rewards is released with ease, that is the way his is done.