I think the term "GaG Community" is meant to include everyone on GaG from admin to the users. Essentially GaG is a social site as well as a Question and Answer site, the site will encourage users to interact and form friendships like a real life community.
It is me, you, the people who answered here, the people who will answer here, and all the others who won't, including the assholes and bitches. G@G is indeed a vibrant place and I wish you luck in surviving here. Just note to self, don't pay much heed to the bitter people here. Please. They have a habit of ruining it for the rest of us.