As people started farming airdrops, it was expected that eligibility requirements will get stricter.
the airdrops become more and more difficult, demanding thousands of crypto transacted, in a lot of transactions during many months.
It goes both ways. In start it was one way to identify and reward genuine wallets (Rather than Paraswap I would say Optimism and Arbitrum). But, eventually, farmers figured this supposed requirement and now they try to farm accordingly, so projects went even further and started excluding wallets which are newly created and have such repeated ingenuine transactions in their wallets. So farmers again went a little further, and they started purchasing old wallets (we have seen few threads like that on this forum). This is never ending game.
Currently there are thousands of influencers announcing airdrops even from projects that did not comment, projects announcing airdrops before have a product and a lot of noise.
Some projects themselves have started using airdrop word as bait while most of airdrop speculation happens on X for engagement farming. Airdrops are hot and it works.
projects that "gamefi" airdrops with tasks and points, terrible.
Don't bother with those, I have not seen a single project rewarding significant amount those who do that kind of stuff.