KYC for bounty hunters doesn't seem too good because maybe your data and identity are not anonymous anymore and there will be people who will know and have your identity, it's very dangerous.
Indirectly this method might turn the decentralized system into a centralized system, at least this would change and if all cryptocurrency users were willing to provide their personal information, each party would know the assets of other people, then cryptocurrency that is always glorified as an anynomous thing will disappear.