I'm still wondering why developers will organize airdrops and distribute an amount of tokens which is far lesser than the minimum amount of the tokens that can be deposited on an exchange for trading. If you don't want the users to cash out the money, why do you let them waste their time?
Basically it is drawing attention to your coin. Developers allocate a small amount of tokens, and ordinary people begin to spread information about them on the Internet. It is not a fact that the token will cost something, but several investors will be attracted and the costs will be covered.