Then why not sign up for it directly? Hypothetically, if you hadn't discovered it from some other tech blog using it (many of which have been linked here), the steps to find it probably went from trying to fill out the actual form on Svbtle, realizing it's an application not a registration, and then Googling an alternative.
All things said, there are so many better looking minimalist WP themes out there for me to believe most folks chose this one at random. If it trended on lists and blogs, it was because enough people who recognized the potential made it so.