Avoid, new precedent trying to be set, the more people the give in, then you'll have to give you info out for every single airdropped/bounty out there.
It's very dangerous for you to trust these non-reputable individuals with your information and for the future of cryptos as a whole, yet no one is discussing this.
You can blame Polymath for this, they don't want to work harder filter to filter puppets, so instead they want your ID.
Edit: There is probably nothing we can do to stop this, because the vast majority of people trying to do airdrops are very likely to hand over their info without a second thought. This has major repercussions, some of the worst repercussions we will see ever in crypto.
The best thing you can do if you're reading this, is to not give in to these new information whores, who are more than likely to flip your IDs on the darkweb for a profit.
Yes your right, even I already took some KYC on some bounties and airdrop, bad thing I experience now is every time I opened my email , I got shocked that my email and details are already registered to some referral even I didn't registered on it, so be aware to all those who give their information in bounties and other airdrops. This is happening now not only I experience it, even my friends already took this for real.