Has anyone officially responded to this yet? I've been told that while the button says "G+ Like" and includes a popup that you can use to share the video on G+, you should not actually need a G+ account to "Like" something. If you don't like the popup saying "want to share this on G+", that's understandable. However, that doesn't seem like it's the same thing as not letting you "Like" things at all.