I was spammed by Google+ this morning. It seems a new client I dealt with yesterday added me to one of his Google+ circles, or otherwise fed Google+ my email address.
I got the invite/notice that he had added me, and did nothing.
(I do not have a Google+ account or anything on Google associated with the email address he provided them).
This morning I got an email from: "Google+ Team" with the subject: "Top 3 posts for you on Google+ this week"
This email was auto-sent without my opting in, and at the bottom there is only a notice in the footer that says "Don't want occasional updates about Google+ activity and friend suggestions? Change what email Google+ sends you."
Unfortunately, I'd need to create and log into to a Google+ account to change the settings -- in effect, they have created a spam-bot... if anyone feeds Google+ your email address, GOOG is taking that as signal to start spamming me.
I will be calling a contact at Google to recommend they immediately stop this practice -- it is nothing more than unsolicited email, and each self promoting email should be considered a violation of the CAN-SPAM act.