If you turn the adblocker off it doesn't apply the faulty rule. If you uninstall the adblocker it doesn't apply the faulty rule. If you switch adblockers and the new one doesn't use the Easylist subscription ruleset it doesn't apply the rule.
So it was NOT the adblocker. It is the third party Easylist ruleset the adblocker uses.
eBay had nothing to do with this unless they changed some things in the structure/details of the search results pages, which I suspect they did, but is a perfectly reasonable thing to do. eBay doesn't have to not edit their pages or change things because you chose to use third party tools that break when they do.
I found (and pointed out) the specific rule in the Easylist set that is causing the problem - it targets sold/completed search results specifically by a class attribute, and wouldn't matter what adblocker applied that rule - it will hide sold and completed results on current search pages.
(there is a subtlety to whether other adblockers other than Adblock Plus use the same ruleset, and if so, whether the other adblockers support the Adblock Plus extensions like :-abp-has ( ) which is part of the problem with the rule in question - that extension broadens the rule immensely which may be part of the problem - or maybe not. No idea what the rule originally was supposed to target)
