Elon backed?: New “coins base” scam

What is the deal with this new scam? I’ve seen dozens of posts about it and claiming if you invest (x) ETH you’ll earn (x) in profits. What is this new trend? Any time I’ve commented on any of them I see later on the post was reuploaded to get rid of the comments and, I assume, scam more people. I also see it’s “backed by Elon Musk” which I assume is false but why him specifically? What is happening?