most of them are usually like a free token, and so do I. But, for some reasons, most of the airdrops in 2018-2019 are likely shits and has no value because of ethereum
There is no something wrong with ethereum although the price is not so good but ethereum is not main factor why airdrop or bounty failed and as you can see now majority crypto market were isn't good and all of cryptocurrencies price were fall and i think blaming particular altcoins when airdrop no value is not too wise