Airdrop is a good way to attract attention to the idea of the project and its products.
Every project needs to have its own community and airdrop is a good way to unite the community and make it stronger.
Now there are many different projects which provide various airdrops. So users have a big choice of where participate.
It is necessary to offer something useful and interesting to attract users to airdrop because of big choice.
Only useful and interesting projects will have its own big community.