Lexicographic ordering is non-zero weight. (Well, sort of. You can't represent a lexicographic ordering with a real-valued social welfare function, so nothing will have "weight" in that sense, but you get the point.)
Lexicographic ordering is zero weight outside of toy problems, since even the smallest possibility of making a difference at the highest order will exclude even the greatest possibility of making a difference at lower orders from attention – but this may have been the point of your previous comment.
Agreed. (And, yes, that was the point of my earlier comment. ;))
In this case it basically allows you to be a heartless b*****d without admitting to actually being a heartless b*****d.
I have noticed that among philosophers, vegetarianism of one form or another is quite common. In fact, I became a vegetarian (technically a pescetarian) myself partly out of respect for an undergraduate philosophy professor. I am interested in finding out if there is a similar disproportion in the Less Wrong community.
I didn't request that this go into Yvain's survey because I want more information than just what animal products you do or don't eat; I'd also like to see nuances of the reasons behind your diet. There are a lot more shades than carnivore/vegetarian/vegan - if you want to be a vegetarian but are allergic to soy and gluten, that's a compelling reason to diversify protein sources, for instance. I'd also like to hear about if you avoid any plant foods (if you think they're farmed in a way that's environmentally destructive or that hurts people or if you have warm fuzzy feelings for plants, maybe). Here are some questions that come to mind: