The UK's Guardian newspaper has an excellent article that claims that eBay is failing to deal adequately with buyer fraud. It gives examples of buyers who appear to be using lax eBay systems to steal from sellers.
I have been buying and selling on eBay for years. It used to be ok, a good place to dispose of surplus items. I have returned to selling after a break of a couple of years and have found a very different situation.
I have several items for sale. I know how to set prices and write descriptions. I have 100% positive feedback. In the past the items would have sold quickly. Now eBay produces
1. time wasters.
2. lots of offers to buy off eBay for cash.
3. very few genuine buyers.
I am very dissatisfied with eBay. I think they need to change, but will they? I doubt it. They have a de facto monopoly. Why should they.
One reason might be that the obvious strategy that some sellers might be able to follow is get a buyer thru eBay but then sell off eBay for cash. That cuts both eBay and PayPal out of the loop and makes some frauds impossible.
That means that eBay and PayPal would not collect their commissions but they would only have themselves to blame.