I have come to understand the usage of "slop" as possibly the sloppiest thing of all: Something that looks like critique, if it were not so entirely devoid of content.
Yeah, arguments about “slop” have definitely devolved lately. Maybe it’s strange (or just typical human behavior), but using “AI = slop” as the only reason to dismiss something and refuse to engage in a discussion clearly parallels the way some people use AI to spam feeds.