I'm sure that Google counts me as an active G+ user (maybe twice or even three times, since I have my normal gmail account, my GAFYD, and the GAFYD for the company I work at).
I think I've re-shared three things over the last three years, commented on maybe twice that, and I'm not sure I've posted a single original post there.
I'm almost completely disconnected from whatever “community” G+ purports to offer, and at least one of the G+ profiles that I have was only created so that I could do hangouts with folks in the company (and we end up using Skype more often anyway).
So yes, it's exactly what Google did.