In this crypto space scams are very rampant here not only in airdrops. It is obvious if we are dealing with scam airdrops. They are those that will ask for a payment to get a token which they promised to have a good value. And there are those which has a big value upon you receive them but the catch is, that you need to unlock the coin by paying some amount.

A real legit airdrop do only has a realistic value and won't ask you to do things that you think are shady and seem to be obvious already. When we do airdrops we have been asked to do a certain task, it is like we market their tokens. That is the reason why we are being paid afterwards.