Previously, spam has been reported and filtered via "flag" and "report" buttons. Why is that not sufficient for site operators to separate "AI Slop" from other articles? If existing sites choose to tolerate "AI Slop" (why doesn't HN have this problem?), does that create a market opportunity for competitors with better filters?
Mostly because most spam isn't going to be reported. Traditional anti-spam works because once you have a handful of reports, you can probably generalize it to an entire class of spammy pages generated using a particular technique, and get rid of everything. LLM-generated content is not distinguishable from human content by any simple rule, so you lose the ability to police the platform that way.
Tell that to Elon Musk. He seems to unable or unwilling to stop a certain type of fake female bot spam on X that has extremely simple to spot and unique patterns.