So, G+ has no qualms about sharing data that even Facebook doesn't want to share. The data itself isn't very damaging, or sensitive. However, its definitely a very useful data for publishers. This is particularly interesting as G+ loves to brag about its enhanced privacy.
As evident by most reactions to the news yesterday, I'd say that most people absolutely do not want this information shared with -anyone-.
However, I doubt G+ has the social graph built up yet to form such an insightful list yet.