We have diverse view on the validity of airdrop. I personally believe that airdrop is a good start for someone coming into the cryptocurrency space. It gives one the opportunity to learn from the scratch and experience the effort it takes to earn from this space. It may serve as a deterrent for greed as the cryptocurrency space is not a get rich quick scheme.
it's good enough when it's paying, but there are some airdrops that aren't worth out there. if it supports the development of airdrop, choose wisely. because we know that so many scammers use airdrop. it will be worth it when you do a potentially large airdrop.