I think that we are all reading way to much into this.
When you pick up your skis from a shop they have them set at "X". "X" may or may not hold you in your skis at any given time, which is why there is a setting, to protect your knees/legs/whatever else might go wrong with your body in a crash. Then it is up to the individual skier to determine if they like the setting, would like it to release earlier or later in the senerio of a fall. It is just a suggested setting, it may or may not work for an individual skier.
The reason why I will flaw this poll is for one simple reason: It does not take the individual ski or skier into account. While I found myself skiing higher DINS on Marker bindins than I do on Look/Rossi, I also have found that I ski different DINS on different skis with the exact same binding.
I like to think of myself as a pretty good skier. There are much higher caliber skiers out there and there are much lower, but I feel that I am pretty solid at what I like to do. As some of us around here know, I have a equipment purchasing problem. I have lots of it, and it all gets used.
I know have, or will have 4 sets of skis with the exact same Look/Rossi binding on them. All of my skis have the Look P12 or Rossi 120, mounted with or without risers, another variable. All of these skis are set with a sligtly higher DIN than shops recomend.
My 1080's have the lowest, as I want to come out of those more frequently, as I tend to "play" around on those a bit. If I plan to go bigger on them, I may adjust the DIN higher to protect myself in a fall from coming out. My Dynastar Skier Cross ski is the next on the DIN level, I tend to ski these pretty fast, and want them on my feet, but if I do go down, I want them off. This is where the elasticity of the binding comes into play. I want it to work, and work well. Funny, if the ski ever has needed to come off, it has. The highest on the line is the G4. These are pretty cranked from my weight, but I usually ski these skis very fast in tight, don't fall areas. Places where a torn ACL sounds like a better option to what else could happen. So they are adjusted by me, to a higher level, for what I believe is my safety. I believe that my new big boards will have similar binding settings. Keep in mind that all the skis mentioned have the exact same binding on them.
Sometimes a ski coming off is more dangerious than it staying on.
I also lie about my weight when demoing skis. My choice, I hold nobody else responsible to what happens to my knees but myself, something we all need to do. Skiing is a dangerious sport, we need to accept that, and DIN settings are but just one of the many things that make it more so.
I agree with Ski Monkey, the whole DIN arguement is facked.