YouTube knows how someone arrived at a video - if they wanted to, they could only count likes and dislikes from people who had the content recommended to them.

YouTube knows how someone arrived at a video - if they wanted to, they could only count likes and dislikes from people who had the content recommended to them. Or they could drop likes/dislikes from incomplete views. Actually I think they already do that, I recall reading something to that effect years ago. It's all irrelevant anyway - their stated justification puts "harassment" first. Given the poisonous cancel culture that exists inside Google it's very obvious what their real motives are and the rest is thus all open to question. If it was 10 years ago Google's only justification for this sort of change would have been to improve the utility of the site, and we'd have believed it because that'd have been consistent with their other actions. In 2021? Not so much.