I understand you want to remove bots from airdrop but why do you think people would be comfortable giving their photoid proof. The whole concept of decentralized emerged from anonymity. I am willing to join but without photoid, if it is okay with you please PM me.

Plus there are other ways to detect bot, you could ask people to take their photo / live webcam with secret passphrase allotted to them and then post it on your website. This way people who are comfortable sharing just their photo could apply at least.

Give me 1 eth if you use this idea