> Posts are crawled and indexed almost immediately
I used to use RSS feeds for quick indexing. Well, I guess we all know how that turned out when G wanted more users for G+.
> Add Google authorship information to your online content
The technique for this really disgusted me the first time I read about it. The easy method is basically linkbaiting to G+, not to mention that no other provider of authorship info is supported. Why do we have microdata again?
> Make your content easy to share on Google+ with relevant social sharing buttons
Yes, no, thanks. More intel and links for G.
> Completely fill out your Google+ profile with relevant and engaging information
Yeah, because people should rather publish good content on G+ than their own sites.
> Make your posts public
Of course, you only get all the benefits if your stuff is public on G+ and generates more traffic for them.
All in all I have to say well done Google. Good for you anyway. And good for people who want to hire a social media.. err.. ninja. Not so good for people who want to publish their own content on their own sites or even other social sites.