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Google brilliantly indexed this page:
https://openuserjs.org/scripts/jscher2000/JeffersonScher/Google_Hit_Hider_by_Domain_%28Search_Filter_Block_Sites%29/issues/closed
But there's no way to get to the script description/download page from there.
Can back-navigation be added for those who wander in that way?
The site is currently being re-designed. I can confirm that the new issues page won't have this problem.