Some airdrop just taking your information and sending you spam email. I didn't remember how many airdrop i join last 2 month and then none of them pay the token though the day of distrubition was long pass. Well, i think there is no way to find if thay are true or fake airdrop, fail or success project. Only hope i think, and lucky
Same observation specially those airdrops that do require email which they do possible having the aim on collecting email for their own list and use it on other purpose.Completely agree that most airdrops are useless and doesnt pay most of the time but yet there are still projects which do paid on but dont expect too much with these things.