That's a Quality Centered Community, it means:
Just High Quality Content Curators on Social Media topic are allowed to post
By posting here High Quality Content you help other Curators to cure it, and you are helped by other curators to find great content.
That makes all the members of the community to win influence.
It is hard to spot Great Content Curators on Social Media topic at G+, so if you spot one, invite him, it doesn't matter how many followers does he have.
As you know, high quality content in G+ uses to be:
- Latest news on Social media topic with a nice image
- Useful interesting content on a post, not on a blog, and with a nice image
- nice readable and cute infographies
And a nice curation tool to find it is using Google + Search engine
It doesn't matter if we publish here many or few posts, it doesn't matter if we are many or few, just mathers we just publish high quality posts