What most takes seem to miss is that hardly anyone these days reads just because it's an easy way to fight boredom and pass some time. It's not 1920s. There's lots of less demanding and very much available ways for that, short-form video being the extreme. So if you're reading books at all, there's some ideological (or cultural, for the lack of a better word) reasons about broadening your mind, caring for your attention, or social participation.

This leads me to thinking that a bigger proportion of readers would care who wrote the works, than predicted by naive thinking. Certainly more compared to video. I'm not negating that some would not: mainly ones who have a very specific taste and just want lots of that.

The author's name (or the book being famous) is a huge factor in selecting what to read, both for prestige and selection reasons (by which I mean selecting something that has a chance of being good). Beyond that, it has been a hellscape for matching the "worthy" authors with readers since... I don't know, the industrial revolution? For the 1800s already there are heaps of writers no one has heard about. The institutions and publishing houses meant to select famous authors is not something I would lament the death of. Though it will exist if only because many people read for social proof.

I would be interested about the arguments against reading self-published books. I know they are extremely likely to be bad, but I'm curious if there's something deeper beyond this statistical argument.