It's even worse for the content creator. Over the last two weeks a video I put on YouTube spiked to millions of views and trying to track the comments is insane.
You get an email about activity, you see activity on the YouTube comments, you see activity through G+ notifications -- and none of it makes sense.
Did this action occur on G+? YouTube? Is this a reply to something somewhere else? What the hell is going on?
I don't mind G+ integration at all, and I think it's a good step forward, but it is simply not working well on services like YouTube at the moment and impedes use.
Also, spam control for comments is just broken. Scroll down, hover, maybe the yellow "review spam comments" box appears and maybe it doesn't. I found it interesting that G+ shares were very, very frequently marked as spam.