the airdrop for me its super profitable to gained money, even its all free but you need also to support them, what i mean is if you buy some token or coin for better,. i know they dont yet if they success the project i just suggest its get to support them, even its small money you spend in that project but soon your spend money to his project your profit make 3x income.
Nowadays airdrops are no longer profitable, its just a waste of time, i had received a lot of tokens by airdrops but its seems no one this had a value, that's why I'll never participated in any airdrops today.