As part of the customer category that spends tens of thousands on Amazon per year, having shifted the majority of my non niche spending for physical goods to the platform, I've found their error rate to be well under 1%. I also return However, that confusion within categories has increased is undeniable. Try to buy a bath towel and be flooded with similar items with similar reviews. The ability to search and sort efficiently has definitely declined dramatically. It takes a lot more effort to make sure you're buying what you wanted for certain categories, particularly soft ones. I can no longer trust that the best selection is going to be on the first page of results.
I wonder if Amazon will draw the line somewhere on how wide, how encompassing of a platform it is for third party vendors. It seems to have pushed itself over a limit.