Not all airdrop are scams and theft of personal information. ~
Agree. Not "all" airdrops are scams. But "mostly" since newbies don't know, so they join every single airdrop. In this context, they provide their personal information (to complete KYC verification ) so that they can get airdrop tokens.
Only a very trustworthy project would be able to give you a great airdrop because of the price rising in the future, a spam project will just give you nothing
Yes, I think all airdrops available on CMC are good and they are also paying. Even though they have a lottery system but there is a chance to earn $40/$50 if you won.
Link:
https://coinmarketcap.com/airdrop/