Totally agreed, that's why I wanted to call out that it's a measure of perceived quality.
If there's really great documentary about the International Space Station, I'd expect flat-earth believers to think that it's rubbish, that's just part of being human.
Conversely, if I saw a documentary about abortion (or some other very polarized topic) which had a 9:1 like-to-dislike ratio, the difference between that ratio and my expected 1:1 ratio would tell me that lots of people thought that the video was high-quality, even those who didn't share the same ideological views.
If there's really great documentary about the International Space Station, I'd expect flat-earth believers to think that it's rubbish, that's just part of being human.
Conversely, if I saw a documentary about abortion (or some other very polarized topic) which had a 9:1 like-to-dislike ratio, the difference between that ratio and my expected 1:1 ratio would tell me that lots of people thought that the video was high-quality, even those who didn't share the same ideological views.