Also, my experience in online groups as well as in person groups is that there is always an active core of around 20 percent of the total numbers, and everyone else mostly watches what goes on, participating only slightly.
That's a very very generalized statement! but there is really something called the "80/20" rule (or maybe it's the 20/80 rule) -- saying that as a rule of thumb in any group 20 percent of the people will do 80 percent of the work or account for 80 percent of the activity or the like.
So I conclude from all that that it's actually healthy for a group to have a sturdy contingent of quiet ones. It might not make rational sense, but it seems so to me.
