That's true as far as it goes, but it seems to me that jumping into a canal to rescue a drowning child is as morally easy as it gets: your explicit beliefs are nicely lining up with your intuitions and emotions.
Eating ethically is much harder; it involves the ability to make some sacrifices without the benefit of strong emotional spurs. Vegetarianism/veganism, assuming it's based on essentially consequentialist reasoning (not all of it is), is basically a real-world application of "shut up & multiply," which I find admirable.
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: