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

Oh, no doubt we're resistant to change.  

We are designed to be resistant to change, yes. Part of our basic wiring. For better or for worse. Natural selection had it become ingrained into the design. Overall, probably a good thing, in most cases of natural world living.

Remember that the porthole idea was brought to you by the same greedy minds that initiated the “Insider” club here on Audiogon. By now you probably realize that no amount of complaining on this forum will change it. Fortunately, there is a workaround that is explained above by one of the previous responders.

So you are saying the sellers have to pay not to have it? Really? I’ve never sold anything before on AG. If anything, I would think it’s an option to pay to make your ads stand out. 

There's no way around it, all private sellers get the porthole on their items.
Only the  listing display can be changed to Classic view.