1. As we all know KYC by its definition. We all know that we aren't obliged to do so. Since no fiat or investment we did to get the tokens which solely the purpose of KYC to monitor the funds ans circulation of token during purchase. Don't comply and don't join bounty with KYC! Simple as that.
2. If youre afraid of KYC asked someone to do it for you and gave him funds in return. I think this is happening on some cases ( But this is form of cheating)
3. Read again step 1. If youre still have complain and still want to join that particular bounty and you are really a nutcracker!