It probably is. I never saw it before, so.. it's new for me. All I did is making a public comment on an exchange's fb page. Bam, I started receiving these requests.
P.S> It can't be older than bitcoin.. otherwise, it will become the same
egg and chicken problem.
So, lemme explain. Is not chicken and egg, is like BHW methods, same old things with a new twist.
Ok, so in the past people made a quick buck using Ponzies and MLMs and inheritance from a Nigerian prince.
Basically, you had to give something (usually money) and the network rewarded you with a badge or something.
In layman's terms: "gimme twenty, I'll double it for ya".
Then Bitcoins came in.
I'll walk you through Bitcoin Mining, a very complex process, where there is a calculation called SHA-256.
What this means?
It involves hashing, which means hiding true words in false words.
So, "gimme twenty" becomes some gibberish because of hashing and you have to input twenty more, that is hashed again and so on 256 times ( SHA-256 rings a bell?).
After 256 rehashings, the network will reward you with a full Bitcoin, which is priced right now at $60k.
This is how you get rich with Bitcoin, it's only rehashed old stuff, repeated over and over.
That's why this is not chicken and egg, more like Paypal Monkey Generator evolving into Bitcoin Apes Rehasher.