I generally do not participate in airdrop, because personally I almost never get tokens from airdrop. That is why it is worth being especially careful when choosing an airdrop or bounty campaign.
Perfectly, it is necessary to choose very carefully and attentively projects for participation. I have received very few coins with airdrop too. I think in them there is no sense to participate and spend the time in empty.
Are you filling KYC requirements from all of these airdrops? and how about the result of your effort? I have seen so many people have sent their KYC to fill all of requirements to participate in the airdrop and then they are getting scammed by scammers. Airdrop is really suck in these days.