There was a myriad of crappy fiction before LLMs - way more than anyone can read - so… nothing really changed? Sure, LLMs have their own distinct flavors of crappiness, but it doesn’t really matter.

If I got it right, the core problem is that because writing became easier/more accessible, more people got… bolder (for a lack of better word) and started to spam^W publish subpar quality works more, I assume, hoping to make some money out of it.

If so, this seems to be simply a growth-related average quality issue that was surely known for centuries (cf. Mill’s “the general tendency of things … is to render mediocrity”; and if that’s a stretch, then, at the very least, I believe Lem was quite explicit about it coming in his Summa Technologiae)