Replying just to let other people that might be having similar problems know that I did eventually get this working again. With Firefox 57 and Tampermonkey this script must be the first one run on AO3, if you have others, such as AO3 Savior, running before Kudos Tools it doesn't seem to work. Also double check you have the usernames in there with the proper capitalization.
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timeasmymeasure
no subject
Date: 2017-12-05 05:35 am (UTC)