Too Long; Didn't Read
Yield farming or liquidity mining is a way to make more cryptocurrency with existing holdings by locking funds in the protocol and earning rewards for it. With high returns come high risks and important nuances, like the fact that APY is only an estimation that gets adjusted daily, the number of fees, as well as price and smart contract risks. It's questionable whether yield farming is a good income-generating opportunity for users who have smaller sums of money to play with and not enough knowledge to leverage advanced farming strategies.