What missing from the article is that they didn't use the same "slop score" to measure Show HN posts from <2023. Nor they released this script so the readers can verify it against known human-made landing pages.
Why? Let me guess: because these patterns were frequently seen in human-made sites too, but that won't fit the narrative.
Remember, several AI detectors claimed Declaration Of Independence was AI-generated[0]. Keep this info in mind when someone (like the author of this article) proudly shows you their home-made AI detector.
[0]: https://dallasexpress.com/state/zerogpt-flags-1836-texas-dec...