It Can be counter productive to just sign up fir any airdrop you see, so act wisely, some projects are worth it and some are nt just worth the stress.
Airdrops is free money too, but be careful so scammers don't have your email and begin to spam you.
But usually airdrop is a very small sum of money, so it is not always possible to expertise each Airdrop. But I agree that people should choose airdrops wisely.