The only explanation for getting rid of dislike count that makes sense to me is to make big brands happy as their videos can't be made to look bad with a high dislike count and they can't be "dislike bombed" for things that may be unrelated to the content (eg the recent Activision-Blizzard scandals). Why? Because in every other way (and every way for the viewer), this makes Youtube worse. So it's a hell of a price to…
I believe the official explanation: dislikes are hurting some YouTubers as a form of "crowd bullying". They were a signal or message that the message (but not the quality) was not approved. Dislikes were being used as a form of critique of the content. They were a kind of mob/crowd behaviour than a personal like/dislike. The YouTubers were both marginalised people, those waging culture war stuff and corporations. By…
1. Sock puppets
2. Brigading
3. Bullying (which is really the dislike version of brigading)
That should be relatively easy to do at scale. Not perfectly but good enough. Once identified just count those votes as nothing. Present them as if the user has still pressed like or dislike but just don't count it.
Instead what Youtube has done has disincentivized people from disliking, which removes a very useful quality signal. Some will still dislike but less will if there's no feedback.
Dislikes provided a very useful signal to viewers about scams, poor videos, wrong information and so on. This provided a disincentive to post such information. So Youtube has removal that signal from users and effectively opened the floodgates to low-quality and scam videos.
That's just crazy.
And to pin that on "bullying" is (IMHO) ridiculous.