Sucks. This happened to me recently.

Giving a seller a defect that adds up to restrict sellers ability to sell, for something outside of their control that they are forced by Ebay to rectify to their own financial disadvantage (while ALSO paying Ebay to list and sell to begin with!) is completely unethical.

Many of Ebays policies disadvantage smaller sellers, I suspect this isnt because Ebay is stupid. In another 5 years itll be an auction house for brand names and large companies.

While sellers are too lazy or uninformed to do anything about it (like make formal complaints to the ACCC, FO etc.) its not going to change.