"Just curious, what reasons were given for 3 stoves? I can see the justification for an extra fuel canister (even if not needed) but 3 stoves carried by one person?!?"
My guess is he took the "two is one, one is none" theory and ran with it. ;-)
On a serious note, I like hearing stories about guys who pack like this because then my 6 or 9 lb tent and titanium skillet don't seem excessive at all. Haha. The important thing though, is that they are getting out there and doing it. If they do it long enough they'll see that lighter weight is more comfortable.
To equate it to SAR experience, when you first start, you carry everything but the kitchen sink. A BVM and O2 bottle, C-collar, survival gear to include 4 flashlights, 2 knives, and 3 compases, etc. Then after a few searches the pendulum swings to the opposite direction and you go out with too little survival or medical gear. Sooner or later you find that happy medium balance, where you have enough gear to be comfortable and effective, but not so much that you're carrying around excess weight.
In my limited backpacking experience, I'm trying to do it a little more effectively than I have in the past. I started heavy and I'm gradually toning down weight and gear until I get it right, as opposed to the knee jerk reaction of going to the other extreme.