@nibbles I highly doubt Plex cares about bugs reported by users… Check the list of forum threads on this issue:
https://forums.plex.tv/t/imdb-ratings-doesnt-update-even-when-i-refresh-meta-data/433642/15?u=tvebax
This was only what I found in 5 minutes, before I gave up. The ratings issue go back years. The only Plex staff interaction I could find, was a thread where staff members refreshed a couple of individual missing movies someone asked for specifically. No acknowledgement of any bug or otherwise broken functionality.
Support options for Plex are generally zero. Regardless of how many posts, how well documented the bug is, or how much time their users waste debugging it.
To be honest, I literally am a bit embarrassed to support a company who acts like this… This type of behavior should not be rewarded.