Oh, this is something that didn't occur to me before, but I actually create similar look-alike websites (that are usually just a proxy-pass) for a few tools or libraries pretty often. I'm using them at work during pentesting engagement to legitimize our c2 api calls. (So for example you have c2 as a notepad++ DLL calling to api.notepadplus.plus or something like that, which is our c2, and the notepadplus.plus is just a proxypass for the real page.)

I never realized that a search engine may actually pick it up during the time it's up, and that the post may have very well be about something I made.