Regarding adding people as friends: Quite a number of my posts are friends locked. One of the things this allows is that those who CAN see them can comment and know exactly who else will see their comments. This allows them a feeling of safety they might not otherwise feel in commenting to a public post. Therefore, me adding you as a friend is contingent, in part, on whether or not I feel my friends would be comfortable commenting openly in front of you.
Friending me does not guarantee I will friend you back. And I may not choose to tell you why I won't friend you back. I may not know you well enough. I may not feel comfortable exposing my friends that way. I just may not want to add yet another set of posts to my friends list view.
In accordance with AR 600-20, para 5-3 a(1)(a), political opinions expressed on this blog are those of myself in my private capacity and not as a representative of the DoD, DA, or any particular element of the Army.