I would classify myself as #4. PVP is basically to break up the monotony of hunting/fishing, make a few $ quickly, and see how good or bad I am against peers, and nothing like the thrill of victory (or agony of defeat)
First couple of months I just farmed...hunted/fish for $'s. Now depends on mood.
As far as posse I don't want to join one yet. I was leader/officer at other games for 4+ years and it is time consuming and people management. I'm not anti social, Just want to see if I can make it on my own, play at my own pace and bail if they don't fix the bugs or start making it a P2W cash grab with super OP guns and stuff.