I really appreciate the effort that this took and I think this is an interesting and valuable result which will influence my actions in the future.

After reading the first part of your post, I decided that I would have a 55% chance of correctly predicting the positions of Less Wrongers but a 90% chance of correctly predicting the position of an average sample of Americans. I hereby pat myself on the back for my correct calibration on the prior claim, and wonder how far off my latter claim might be. A lot of the arguments that I encounter in daily life (e.g. bar-b-ques where I refrain from eating meat) are pretty crummy.