most of airdrop can't be trusted, some of them are scam, i would prefer to particpate in bounty campaign rather than airdrop. some of airdrop has no worth in market, it really different with bounty campaign, bounty campaign potentially can be trusted eventhough there some bounty are scam, but it's better than airdrop.
So what's your point?? We should abandon airdrops?? Cause you feel some are scam??