The OP links to a corresponding YouTube blog post with more specifics about how the G+ rollback affects the YouTube service (as of today, YouTube comments will only show up on YouTube, and not on G+, and vice-versa):
It also mentions improvements to the ranking system "that reduces the visibility of junk comments. It’s working—the rate of dislikes on comments has dropped by more than 35 percent across YouTube."...Is there a whitepaper or engineering blog post about their technical approach to this?
Ever since they integrated G+ with YouTube comments, I thought that the comment dislike button was just a placebo. I've never actually seen the score of a comment go down upon it being pressed. Has it actually been working the whole time?
http://youtube-global.blogspot.com/2015/07/youtube-comments....
It also mentions improvements to the ranking system "that reduces the visibility of junk comments. It’s working—the rate of dislikes on comments has dropped by more than 35 percent across YouTube."...Is there a whitepaper or engineering blog post about their technical approach to this?