What We Can Learn about Going Viral from the Google and YouTube Integration1. In order to post a comment on YouTube, you now need to have your personal Google+ profile attached to your YouTube account.
2. Comments will now be sorted by relevance with those who are in your circles (your friends) or celebrities showing up above whomever commented most recently.
3. The YouTube video creator can now moderate all comments easier through tools that block certain words or auto-approving comments that come from certain people.
The idea behind the changes was to help clean up YouTube comments, keep the comments more organized, and help users have a better experience by only seeing comments that are relevant to them.
Read the
+Moz article here:
http://bit.ly/1db7t3P#GooglePlusYoutube