Google+ is now being forced onto Youtube users. You can't comment without an account, and there will always be a popup asking you to migrate your Youtube to Google+. This is stupid and a terrible idea, here's my video on it. Like it and share it with your friends:

http://www.youtube.com/watch?v=SOyxk...E3Tq7lfISAK1Fg

And here's a change.org petition:

https://www.change.org/petitions/goo...-original-form