Well nothing in life is free. Including crypto. In the end a lot of tokens are either way worth nothing or the whole airdrop was a scam for getting as much personal information of you as possible. Two rules I use with airdrops:
- I never do KYC for airdrops. Never.
- If I feel the airdrop is probably a scam I use my airdrop accounts so they can't social engineer anything from me.
Using this you will only lose time on useless airdrops and not more.