This question already has an answer here:
There seems to have been no action taken from the "completion"
From the answer on related post:
I think people who have spent time on traditional forums expect a pin icon to mean that a post is "sticky", or always at the top, which is what these pinned items are. However, we also added a sentence in the hero image on the help center landing page that instructs users to begin by reading the pinned articles first. This should make it pretty clear that the pinned articles are the most important.
The bold part of the answer above never seemed to come to fruition.
So again -- Can these pins please be clarified on the actual help center as to what they mean?