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.
anigbrowl|2 years ago
/jp/ is not an adult imageboard but still somewhat NSFW, consider yourself warned https://boards.4channel.org/jp/thread/44068025
ydnaclementine|2 years ago