I have never joined airdrop for a very long time, in the past I joined airdrop. quite simple and pleasant seem not very difficult, I do not deny that for a gift is not too reliable. so I am not so interested in every airdrop. but at this time maybe the airdrop has started to change and can get better, I will try whether there is a very significant change.
You are not interested because you can't promote it maybe.
because the purpose of airdrop is to collect referrals and share your link with others, then invite them to use your link and tell them how to claim the token.
this is the same as promoting an item and the more people who join the more you get your coins.
It is different from bounties which have to collect as many stake as possible by joining many campaigns, and also the prize will be less if one of the campaigns that you participate in increases.