I stopped partecipating in airdrops and I agree with jonnytracker here, if you want to get some money they're just a waste of time, they're good to spread the word about your project though
I also think it is not worth today.
Byteball and Stellar Airdrops were really nice and I would immediately make much effort, if such an airdrop would come again.
But most airdrops today not worth more than about 5$ and they want to know more and more.
Even KYC I saw for an airdrop, what a crazy world.