If you had read the actual article, you'd know that the headline is fitting. He got warned, that it is an unflattering article, he got the hint with the insecure web server, he had the chance to explain himself and set things right.

It appear this app was vibe coded, has no security, now serves a lot of people, and the author is somehow thinking how to make money out of it, hence the reluctance to make the code open source