An undeniable fact of the crypto revolution is that the great growth in the platform will continue as well as Airdrops. There are currently over fifteen hundred cryptos, with many more being developed. When the ICO explosion started last year, new coins easily attracted attention.
And now it's not like that anymore, because the market has become crowded with coins competing for their sake. Airdrops has now become a common tool for teams that want to get their platforms filled with coin enthusiasts.
The simple logic of an airdrop campaign is to give away free coins is an effective way to draw attention to the new crypto platform. Although there have been several airdrop for several years, only recently have they become common.
This is exactly because of what you said. User 1 get's a certain amount of free coins and reads up about it. They then become invested in the coin and wish for it to succeed. User 1 then tells User 2 about the coin and User 2 gets the free coins as well. This just keeps going until there's no more coins to be given out. It's really a good way to get the word out about your coin. Everyone likes free stuff.