Why are people giving away so much money for free? Is it a scam?
The truth is that the creators of a coin now a days have to get peoples attention. By giving away coins instead of requesting private sales the coin gets traction easier and perhaps they don't even need much more money if the project is lean and clean - once the coin goes up in value they will get a lot of money anyway. Why would they give away money? Well most traders just don't believe in a coin until it's grown in volume and perhaps its down to a few satoshis and people know that it might just go up a few more and thats a good investment too. But the devs also get a stronger subscription base on their social media accounts to get more people interest and they get many who read their posts and that's worth giving away a few coins to everyone who joins, and the users gain a decent chunk actually! It's basically advertising with coins that are made from thin air - but when everyone starts trading it.. it might just go up a lot in price ;) I personally hold my airdrop coins and wait, if it takes a year to get 1000% or 500% profit ill wait :)
It's a great way for people who dont have much investment money to easily get some crypto and learn more about different projects and how they act on the blockchain. Anyone could join and get $100 in a month clicking a few minutes a day, or you could spend some more time and make 4 figure numbers. It's up to you how much time you have, if you can refer people in an easy way or not.

This is my favorite, it has a lot of drops - currently around 15-20 active drops you enter easily and most are eth based so you give them your adress for when the drop is released at a later time - meanwhile you got time to gain more coins by sharing the different ref codes! https://is.gd/AvFnk4 Enjoy the free coins and daily drops :)