airdrop: the good and the bad

one of the good things that blockchain technology ushered in is airdrop, it gave people the opportunity to own and be part of business or project that a developers are building. unlike a traditional business where you have to pitch thousands or millions of money if you want to be part of a project or business. but if its a good thing some people is taking advantage of the airdrop to use it to waste other peoples time re: scam. some if not many of the airdrop being put out is simply a scam. some of this scam is instead of giving out tokens or crypto it gives out cards that you can't use anywhere. whats next? airdrop to gibe canned goods? i think if we really want blockchain to succeed we must weed out this kind of scam so people will really trust blockchain technology and use it.