You could try advertising more, for example, by putting up signs around the neighborhood, posting about it on social media, or having people you know spread the word. You could also try doing it in a different neighborhood that might have friendlier people, or do it in a time and place where there's likely to be a lot of people walking around the area (e.g., near a church before the end of a mass).
StudioPress itself is somewhat of a niche product as it is targeted to existing WordPress users who found setting up and managing a WordPress site too difficult or time-consuming. StudioPress prides itself on being easy to use, but their main claim to fame is that their hosted websites are “faster and more secure” than other WordPress hosting companies as well as using the “Genesis framework” which is supposedly more SEO friendly than other WordPress builds.
I would also like to see a forum built into the platform. Wealthy Affiliate has a unique way of building a community and I understand why they shy away from a standard forum type of format. Instead, they want to promote live chat sessions, blog posts, private messaging, and public questions where people can comment below. This type of setup is pretty cool at times, but I also do enjoy forums where I can just browse by topic.