Some airdrops require personal info from their users like government approved ID proof, a selfie with it, contact number, email, address etc. Does this information really required? How to know if somebody is scamming you for asking this kind of information?
In my own suggestion as much as I do not participate in airdrops, I think airdrops that ask for vital and personal information like this should not be paid attention to because I do not believe there is any need for all this before you can participate in the airdrop.