Airdrop is definitely a useful technology that increases awareness of a new token and encourages new user loyalty.
They are great tools for new promoters and project developers to gain recognition; and in general, bring benefits to the market by attracting more interest and bringing in a wider range for the coding money.
Airdrop offers a too good proposition that can't miss the opportunity to get a share without any risk. From the perspective of the investor, the airdrop is really exciting. Just make sure you confirm the authenticity of the airdrop campaign before joining.
In the US, airdrop is questioned about taxes and whether it is good or surplus. There is no consistent answer, but consulting a qualified tax professional should be the first step.