Ah yes, those web mechanics here. Beavering away on this issue as we speak.😉
Perhaps that is another issue that will be resolved when the new site architecture is implemented😉
But for now, the best workaround if using Euros or Yen is just to studiously avoid setting the Paypal “Buy it now” window here, as others do.
Just list the price in the body of the ad in whatever the preferred currency is. That works.
We don’t pay anything for this site as it is, and get a lot of benefit from it. Certain glitches are also free. Can’t complain.