Genres Should Not Be Keywords
The guidelines are very clear in stating that genres should not be repeated as keywords. Yet, this problem continues to happen.
Recently, I have audited and corrected 96 "thrilller" (Yes, three l's) keywords and 80 "mistery" (yes, with an "i" instead of a "y) keywords as well as many, many other keywords that duplicate genres. I have yet to get to over 200 titles tat have "dramas" as a keyword. (A genre, as well as an unacceptable plural.) There were a few 2018-and-before titles with these mistakes, but almost all were 2019-2020-2021 titles, many of them Shorts. I can only surmise that, in recent years, contributors and keyword list managers do not know and/or do not enforce the guidelines.
To help control this problem, contributors must be informed of their mistakes and keyword list managers should review and enforce the guidelines.
There is also something else that seems to contribute to this problem. Genres are processed later that keywords. But, since genres and keywords are so closely related, it seems that they should be on the same processing schedule.