Under the comments section, you have this post then
It's very easy to think that it's the actual account which is posting the airdrop comment and people have actually fell for it. If you click on the page that has posted the airdrop information, it takes you away from the original blockchain.com's facebook page to this https://www.facebook.com/Bl%D0%BEckch%D0%B0in-365157564266368/?rc=p
These are two different pages one being run by a scammer. Be careful out there folks, even official blockchain.com's account didn't bother removing that comment.