I had a similar problem with + and a plugin. My plugin ‘Social Link Machine” takes your articles from your websites and posts them to social links. It is random and i have it as every 24 hrs. Google + sent me an email saying I’m doing something they don’t like. As you know, they will never tell you exactly what you are doing wrong. I simply took + of of social link machine and manually post them to Google+ Look up “dictator” and you’ll see Google’s name.