137,699 Published Users represent the Hubpages community (11/08/2012). Those you have pointed out in this User's view are paid professionals of the leadership core. The remaining users or 'us' are business partners in some form unless declared a non-business enterprise. The question becomes are the remaining affiliate marketers only users or are they staff members too.
Again, a personal perspective is I view 'you' Goody5 as a staff member as well as a hubber. I seek to learn from you as both a leader and co-hubber. What bears on the view I am sharing is the 'job' description' along with those tasks, duties, and responsibilities of position. To my knowledge, which is faulty, is all of the core leadership staff members, whom are paid professionals, do have a hub site and contribute within the community.
The remaining questions you asked I have not an answer.