Before coming across Less Wrong, I wasn't really aware of rationality as a community or a lifestyle - I don't think there's anything like that where I live, though there are small but reasonably strong skeptic and atheist communities - so I don't think I'm necessarily able to answer the question you're asking. I will say that some of the local beliefs - Singularity, transhumanism, cyronics - are certainly a bit alien to some people, and may undermine people's first impression of the site.