Oh, back to your original question of feeling like the only human left fighting against evil: that's about 90% of the game at least.
You can't play the game while in party chat. Well, you can, but it makes you play offline i.e. you can't summon other phantoms to help you out
Another small thing I've noticed is that I logged in just now and look at my friends list. Usually it looks something like
player a - cod: black ops 2 - domination in slums
player b - watching netflix
player c - battlefield 3: in the menus
player d - nba2k13 Hou 25 Det 20
What I'm saying is most games tell you exactly what is going on in your friends games. Not Dark souls. Just now:
CorndogCologne - Dark Souls - playing
Thanks XBL. I can see he's playing. Where is he and wtf is he doing?