What, there's no neutral environment that can be maintained? It's Star Trek and cans of Monster, or pink wallpaper and plushies? Come on. With any [insert subculture here]-friendly environment, there's a chance of alienation. We're not asking to adjust the decor to market to a culture, just the recognition that one that plays heavily into the "typical geek" stereotype can be off-putting to _any_ who don't fit.
If the decor puts one off, I suspect the culture will, too. If we change it to attract some specific group, we should be careful that we are not attracting people who will not be happy here.
"CS is mature field and as such will do better if it projects a professional, neutral image" is a hypothesis, nothing more. Prove it with a successful venture -- but I don't think you will. This is still a place where passion trumps professionalism, and an enforced culturally neutral environment isn't the best incubator for passion.
Personally, I think we'll do best by simply being ourselves. And letting the demographic chips fall where they may.
