"Airdrops are a central feature of the cryptocurrency space. The first time I participated in one I didn’t even fully understand what it was or the value of the tokens I received. I was new to crypto and had read something on social media about “free ETH”. I followed the link and provided my ETH address. In actuality, no one was giving out free ethereum. A startup was airdropping their new token. The amount they were giving away was going to cost .5 ETH during their upcoming Initial Coin Offering (ICO). I got the tokens but it wasn’t until later I understood I had 1000 ERC20 tokens that could eventually be worth something on an exchange.
Since then, I have participated in hundreds of airdrop campaigns and made thousands of dollars in profit. I want to share my experience navigating the world of airdrops, as well as the scams I saw along the way."
https://blog.goodaudience.com/a-guide-to-profiting-from-crypto-airdrops-and-avoiding-scams-along-the-way-b4f77b4082a6