You know what just crossed my mind? All these people who keep posting things in comments like entire movie scripts, entire epic novels, ASCII penises, swaztikas, tanks, and other things are pretty much supporting the new Google+ comment system, rather than protest it... because, like, if people don't want to use Google+ just to comment on videos, then they should stop posting comments altogether: go to your account setting, disconnect the forced Google+ account from your YT account, delete your Google+ account, that way, the only reason you'd be able to post a comment would be to register a Google+ account, and if you don't want a Google+ account, then you won't be able to post.
See, THAT's how you show opposition; the way everybody is abusing the new features, like no character limits and links to porn sites... this is kind of pretty much what Google wants...