The golden age of hairdressing has passed, and witch-hunting will definitely become the standard, and witch-hunting will be done with technology and ruthless methods. It is no longer an ordinary association, but also checks the consistency on the chain, checks the amount, checks the interaction time, etc. Because there are too many witches, small projects should be investigated on a small scale, and small projects should be investigated on a large scale. Multi-quarter NFT, sbt, and in-depth interaction may gradually become the mainstream way to issue airdrops.