The idea was initially mine. I did noodle around with it for a bit, but a few things kept me from moving forward.
One was that, looking at a list of questions and answers, I wasn't very happy with the format. It didn't feel appealing or fun to read, to me. Kind of like reading a compilation of Facebook posts -- you might hugely enjoy a Facebook post, but reading 10 in a row from the same person on related topics is kind of a weird experience.
A second, and kind of the overriding reason, was that Amazon disabled the option for publishing free ebooks. At the time I originally suggested the idea, freebies were a very popular marketing tool -- people browsed freebies and used them as introductions to larger series, or to individual creators. But... this also turned Amazon's free ebooks into, pretty much, a collection of ads. So they instituted a minimum price. The avenue of "set up a FREE ebook at Amazon" was closed off.
We could, to be sure, still make an ebook. Sell it for 99 cents, or give it away on Amazon Unlimited, or just host it somewhere off Amazon for free.
But that's definitely a lot less exposure than I'd originally hoped for, and that made the effort seem a lot less worthwhile, at least to me.