AI slop detection requires some fine developed intuitions that come from decades-long exposure to both journalism/marketing slop as well as high quality literature. Because AI was aligned out of the hell by low level journalism newly graduates.

That's why it always falls back to the same tired formalistic clichês, like "Not this, but that", rampant baiting and sensationalism, because that's what would get high marks from your typical low-rent liberal arts annotator.