alt Hacker News+ also got a bad rap due to what happened to Youtube - merged accounts - and yeah Google acted in some awful ways in more than one way but they were also trying to solve a problem of Zuck's shifting views on privacy (or rather the same view, that it shouldn't exist)
It probably wasn't the worst thing ever to try to leverage some of the existing social networking going on on YouTube, but combining it with a real name policy and making the actual posts/comments into first class global content for the G+ feed? Idiotic, and completely undermined the whole premise of safely walling off your content to its intended audience.
(See also: nice how reddit now makes it possible to curate the list of which subs you participate in whose comments and posts appear on your global profile page)