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.
I agree, it is not a good trend and I fear it will only become worse in the future. Pay attention by sending your ID documents to the ICOs!
Not only your personal data will be used on some shady transaction but it can also lead to identity theft and many dangerous situation in the internet world. They can track your daily doings and encash by trying to sniff on your personal data sent and surveillance your everymove through social media accounts related to your data. I dont support this kind of thing in the crypto KYC is just a waste of time and can probably involved your data in some shady acts.