If Ebay has a real competitor, then it will have big problem. 

Very upset that they have changed rules and we sellers have to spend more time on getting the transaction fee back if the buy won't pay. 

Ebay should notice, Sellers pay to make them survive, not the buyers. 

If one day companies like Alibaba come in, Ebay will see its end soon if their way to do business is not changed.

They should have remembered how easily Ebay was beaten by Alibaba's son company Taobao in Chinese market a decade ago. 

Similar thing might happen again.