On the higher cost for final value, it does suck, but Ebay was clear that they were lowering the insertion fees in order to get people to post more items for sale without worrying about what happens if it doesn't sell.
My fear with this policy is that I am going to have to page through more pages of similar items from the professional Ebayers.
And as far as receiving no feedback, I can honestly say that I used to keep my items on my Ebay page until I either received feedback or it fell off by eing too old. I nevr prompted for feedback, so I realized that it is best for me to remove the item from my "bought" listing immediately (less stress). However, the few times I sell, I do leave it on the list because a feedback is the only method to ensure an item was received.
I think if I were to sell an item and not see feedback after a reasonable time, I would probably compose a message asking if he item was received (a real customer service, truly wanting to know if the item was received safely) I would probably mention briefly that I am used to getting positive feedback if the item was received intact and in the condition advertised.