It shows rating bars which represents Like/Dislike rating ratio.
< Feedback on YouTube RatingBars (Like/Dislike Rating)
Oh, really? Could you tell me your browser and script engine with version?
I tested on: Firefox 68.0 with Tampermonkey 4.9.5941 on Windows Chrome 75.0.3770.100 with Tampermonkey v4.8.41 on Mac
and works fine.
Doesn't work
Doesn't work.