Most airdrop now are scammed, I remember back 2017 if you join any airdrop, you will be expecting to get some money, but now failed projects every where, so airdrop don't worth it
Most airdrop can not trade because dont listed on exchanger. But many good airdrop and listed on exchanger and i am once get airdrop and can sell it on exchanger and earn more than $50 when i sell it.