Ed,
The other benefits, albeit likely unintended, is that in reading people's stories of the battles they have emerged (or not) from, we are all reminded of a deep wellspring of strength that is the core of human nature, which most need never tap in their lifetime. When you do have to, it is comforting to see you are not alone, and that the well runs very, very deep.
Also, speaking for myself, it is a reminder of just how lucky I have been in my treatment, which is a kick in the pants when I start to feel sorry for myself, as I have had it so much easier, than so many here. It is easy to lose sight of the big picture and wallow in one's own circumstances, but then I see your story, Christine's and Paul's and Charm's, and so many others, and think: "You stupid ass, take nothing for granted, and carry on".
So, short version (I'm a lawyer there is no shorter version than this)thanks to all for that.