I participated in almost all Coinmarketcap airdrops within the time and never get so lucky to get rewarded from CMC. It is a full luck bases game and there are 100 times more people were joining these airdrop so the chance is getting rewarded is very much low. I think from now on I not going to waste my time on these airdrops because it provides nothing always.
Well, the fact that there are millions of participants, the probability of you winning is just almost 0. The rewards are too low too and these programs are just meant to have awareness and hype for the token itself added by passing the requirements to be eligible of putting a logo in Trust wallet. So, yeah youre correct that these airdrops are just a waste of time unless you have bots.