Linking your G+ has many pros to it. Everyone should consider connecting the two together before it's required.
SEO via backlinks and +1's (G+ plays a huge factor in search ranking) and even by just having circles, provides you with another way to communicate with your viewers without them having to sign up to certain social networks - you could even make a custom Circle group for your most engaged viewers to share exclusive content. Check out: http://moz.com/blog/using-google-plus-to-appear-in-the-top-results-every-time-whiteboard-fridayCan you enumerate those?
Google + is that guy who asks you out and you say no 100 times but he keeps showing up with flowers. Then you go to call the cops and say you want to report a stalker, when the cop arrives to help, it is the guy who has been stalking you!!!! AHHHHH