I am thinking what is the importance of airdrop? What makes airdrop happened? what is driving it continue to give away? Is that only for promoting certain currencies? should the airdrop continues happening
Create tokens for free and giving away it for free as well, if the token has any value in the future then you will get profits or else nothing is going to happen. Giveaway is solely for the promotion purpose and its actually a promotion they get for free.