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.
not all airdrops will give youprofit , only a portion of the airdrop will really benefit you. for example at this time the airdrop that is being talked about is keybase.
but there are airdrops that even cut and change the rules to get it makes people lose, I give the example of "super airdrop bcnex".