I do not advise you to participate in airdrops, even on very proven and highly rated sites. This is very low earnings for full access to your information. In addition, many companies simply do not pay the promised coins. Think a hundred times before you participate.
If they are interested with it, that won't help. But I have the same opinion as yours that its not worth it anymore. Most of these airdrops are just giving a useless coin that you will can't use with anything unless selling them if they are on an exchange. And to airdrop people there, you don't have to go far just to hunt these free tokens. You can stay to
Bounties (Altcoins) and just choose a legit project if you have a lot of spare time for this activity.