It's probably true that rubyists are still "left-brained", whatever that means, but I think they tend to be more on the right side of the left side than other language subcultures. The co-occurrence of terms like "beautiful", "happiness", and "art" in discussions of what ruby means are far higher than in other languages. This is self-reinforcing since a like-minded neophyte will be attracted to a community that talks and acts in ways that she or he finds common ground with. I had learned a bit of python from some well-written but dry books. But Why's poignant guide got me excited about ruby because it was obvious how excited he was by the language, and to some of us that was infectious in the same way chunky bacon is (it's not for everyone).