First of all, it's a self-selected group of people-- not a very good sample. Secondly, and more interestingly, these are people who are self-selected precisely

First of all, it's a self-selected group of people-- not a very good sample. Secondly, and more interestingly, these are people who are self-selected precisely along a very specific axis, one regarding a non-normative notion of utility-- the very thing you are asking them about.