>It is popular enough
Define popular. This is the first time I'm hearing about it.
>not require introduction on HN
It's not necessary to explain acronyms, but gawd damn, I wish these products had names that were easily googleable.
>I wish these products had names that were easily googleable.
They... are?
https://www.google.com/search?aep=11&udm=50&q=should+you+swi...
You can't google for "X" like it's early stack overflow days, but adding the minimum context "X that has something to do with Y" works 99% of the time.
I'm not deep in the VCS discourse but I've seen jj come up many times on HN. I don't think it need an introduction, but it's also think it's reasonable to request clarification because I agree the name is confusing.
Tangent, but when I was younger, my main programming language was Processing, and I bet you can imagine how difficult it was to google issues with it :)