The problem is that Google+ came into that space from being a Facebook clone instead of being a comment platform. G+ should have been designed and built as a replacement for Disqus instead of a replacement for Facebook, and then it would've gone much better for Youtube/Blogger et al. For example, a Disqus-replacement would have obviously known that "Real names" was a terrible idea and the host of the comment thread (the Youtube page or whatnot) needs to have a lot of control over moderation.