Am I the only one that finds the "Round thumbnail frames" irritating on classifieds?

Agreed very unappealing.
I thought the old format was much better.

Is the porthole an option when listing a classified? I don't see how any seller finds this attractive

There were lots of hate threads on the portholes when they were rolled out.  I’m amazed they are still around. They are just terrible.  

You can get rid of the porthole view.  Go to Browse, on the right you'll see a "sort by" box and another icon plus a green icon.  Click on the middle icon and it will give you an option for Classic View.  Click on that and you go back to the way things used to be.

I find that audiophiles are easily agitated ;-)