I'd say the primary similarity is the marketplace of third party sellers. For products where Amazon.com is the seller, it has about as many problems as anywhere else. Where Amazon.com is not the seller, it is like etsy or ebay, where the product listings themselves are completely unreliable. The #1 thing I hate about Amazon is how they mix third party items with items where they are the seller. However, third party has grown from 3% to 58% of sales on the site, so I don't see how they can get rid of it or fix it.

https://qz.com/1592802/jeff-bezos-third-party-sellers-on-ama...