Why should we think of beliefs about proper procedure as less prone to reifying identity formation than beliefs about things other than procedures? How are beliefs about the best procedure for reasoning or predicting not beliefs about the state of the world? Specifically, are such beliefs not beliefs about the human brain and how it functions? Aren't we all pretty committed to the view that updating priors is a better way of getting things right than praying for the answer? I don't see why beliefs about procedure aren't just as liable to be let by as unchallenged assumption as are beliefs about political systems.
Besides, we'd be kidding ourselves if we said that the less wrong community has no shared beliefs other than about procedure. Yeah, a rationalist doesn't have to be an atheist... but there aren't a lot of outspoken evangelicals around these parts. It remains very possible that some or most of us could come to associate other beliefs with the rationalist label, even if the label doesn't explicitly include them right now.
There are lots of reasons to call ourselves rationalists- but lets try not to dupe ourselves into thinking we're so special none of the problems with labeling will apply to us.
I'm inclined to agree on your latter point: looking at the results of the survey, it seems like it would be easy to go from 'rationalist' as a procedural label to 'rationalist' as shorthand for 'atheist male computer programmer using bayesian rules.' Of course, that's a common bias, and I think this community is as ready as any to fight it.
As for the former, I tried to address that by pointing out that rationalism means that we've already decided that updating priors is more effective than prayer. That said, I have a perhaps idealistic view of rationality...
I've noticed that here on Less Wrong people often identify themselves as rationalists (and this community as a rationalist one -- searching for 'rationalist' on the site returns exactly 1000 hits). I'm a bit concerned that this label may work against our favour.
Paul Graham recently wrote a nice essay Keep Your Identity Small in which he argued that identifying yourself with a label tends to work against reasonable -- rational, you might say -- disscusions about topics that are related to it. The essay is quite short and if you haven't read it I highly reccommend doing so.
If his argument is correct, then identifying with a label like Rationalist may impede your ability to be rational.
My thinking is that once you identify yourself as an X, you have a tendancy to evaluate ideas and courses of action in terms of how similar or different they appear to your prototypical notion of that label - as a shortcut for genuinely thinking about them and instead of evaluating them on their own merits.
Aside from the effect such a label may have on our own thinking, the term 'rationalist' may be bad PR. In the wider world 'rational' tends to be a bit of a dirty word. It has a lot of negative connotations.
Outside communities like this one, presenting yourself a rationalist is likely to get other people off on the wrong foot. In many people's minds, it'd strike you out before you'd even said anything. It's a great way for them to pigeonhole you.
And we should be interested in embracing the wider world and communicating our views to others.
If I was to describe what we're about, I'd probably say something like that we're interested in knowing the truth, and want to avoid deluding ourselves about anything, as much as either of these things are possible. So we're studying how to be less wrong. I'm not sure I'd use any particular label in my description.
Interestingly, those goals I described us in terms of -- wanting truth, wanting to avoid deluding ourselves -- are not really what separates "us" from "them". I think the actual difference is that we are simply more aware of the fact that there are many ways our thinking can be wrong and lead us astray.
Many people really are -- or at least start out -- interested in the truth, but get led astray by flawed thinking because they're not aware that it is flawed. Because flawed thinking begets flawed beliefs, the process can lead people onto systematic paths away from truth seeking. But I don't think even those people set out in the first place to get away from the truth.
The knowledge our community has, of ways that thinking can lead us astray, is an important thing we have to offer, and something that we should try to communicate to others. And I actually think a lot of people would be receptive to it, presented in the right way.