I admire your optimism about cream rising to the top. But I just can't share it.
The average person isn't going to spend an hour digging through a literal trash-heap on Amazon in order to find something worth their time. They'll give up after five minutes of reading terrible review after terrible review and then go find something else to do with their time.
And thus the collective intelligence of humanity drops; not because they're actually reading all of this white noise of self-published crap. But because they're not reading at all because of the effort it takes to weed through it at the book store (digital or otherwise).
The best example I can give is how "Oprah's Book Club" (am I giving away how damn old I am yet?) got people reading. They read because they didn't have to go and find this stuff themselves. Someone curated it for them, told them "Hey...this is good".
If the average reader didn't have Oprah and had to dig through five thousand Amazon self-published "suggestions" before stumbling onto Toni Morrison or Push by Sapphire, they're quickly go doom scroll Facebook instead.
Like I said, I admire your optimism and a part of me wishes I could share it. But the idea that the lack of any accountability for self-"published" drivel completely muddies any real "discover-ability" of the actual good stuff is a hill that my elitist ass will happily die on.
No worries. I freely admit that my entire opinion on the subject of self-publishing is elitist and condescending as all hell. So I can put on my big-boy pants and take a bit of my own medicine back. No worries.
But no, I didn't take your response as condescending. You're right that a person can sort and filter. But a filter should almost be an option, not a necessity. I'll happily sort by genre, or page count, or yes...even ratings, to find something interesting to me.
But I shouldn't have to have a button that says "sort out any crap that hasn't even gone through a cursory elementary school grammar course". There's a line in the sand of what should and shouldn't be acceptable in any business environment that nominally wants people to spend money with them, and "making my customers weed out unprofessional garbage" should (IMO) be that line. Amazon, Kobo, or wherever, should at the bare minimum be telling people front and centre, "this is the minimum level of quality you can expect...feel free to sort however you like, but we at least guarantee that every book will meet a certain level of literacy."