Reason Rally is definitely an event that selects for people who feel excluded by their communities most of the time. There may be a different concentration of people who have had this sort of experience on LessWrong. Some of us felt ostracized by our local communities while growing up, others have felt pretty much free to express atheist or utilitarian views for their whole lives.
We are trying to find out about how many LessWrong members feel like outgroup members where they live, how many feel like their views are accepted by those physically around them, and how many don't interact with their local communities much at all. We also would like to find out what sort of attitudes towards atheism, skepticism, and related ideas LessWrong members experienced while growing up.