I always felt it was weird that the Google+ support discussion forums was in a Google Groups area and not in Google+ communities.
I know communities was not a feature within Google+ on day one but it has been around for a pretty long time now. Again, just seemed awkward to have support discussions about Google+, which is all about discussions and sharing, outside of Google+.
Google's "Sky B" said:
Important announcement: the Google+ help community is moving! For the last 2 years, this forum has been our home and a place for users to ask questions about Google+ and receive answers from fellow users, Top Contributors, and even Googlers. Going forward, you can ask for help and learn new tips at the Google+ Help community here, in Google+. You’ll have 30 days to shift gears - then, on September 17th, we’ll freeze the forum, so you can still read helpful posts, but will be asked to post any new questions in the Google+ community.
I wonder when all discussions for support will migrate over to Google+.
Forum discussion at Google Groups.