It's from a ~daily Japanese language thread, the comment in question is simply 'reverse nihongo just dropped https://minilanguage.com/' and did not spur any further discussion. I just happened to notice it at the time and thought 'mildly interesting, maybe I should submit this to HN'. When I visited HN later in the day I was amused to see it already here.
I think the best way to see it is like this: vowels like in Spanish and consonants like in English. The Duolingo Stories have pronunciation with a TTS engine https://duostories.org/mini-en and the dictionary has pronunciation with an actual human voice (mine) https://jprogr.github.io/buku-name
