I had the same experience. I don't know why they haven't invested more in this feature. Heck, if they classified every site in their index as "AI/not AI" using machine learning, and had a large allowlist of "known-good" sites, that would take care of most of the problem (I am aware of the drawbacks of text-only AI classification, but they could use other indicators, like the site's publication date, domain name, domain registry date, etc.). I think for right now, the "state-of-the-art" for non-AI search is going to entail maintaining large whitelists/blacklists of websites that are crowd-sources by users (e.g. what you can find in some GitHub repositories). I was hoping that's what SlopStop was going to be, but it is not nearly as effective as it needs to be.