I've found that our CC instance had a significant amount of open reviews, some over two years old with no activity. Some were "false starts" where people had created the review but didn't upload file...
HI robat3ds
Glad to know that I am not alone 🙂 I'm in a same position as you are - requiring to remove false reviews created that has not activity since two years.. I have a list but deleting one by one is too much pain to bear