Don't waste time on airdrops, less than 1% of airdrops give you money. You will face a lot of risk when doing the airdrops, my Exchange account was attacked when I was not careful using the same mail to join some airdrop.
Yes, airdrop is often one of the most worthless activities at this time. In most cases, we don't need to pay special attention to it. Even if it seems that we can get a lot of benefits.