From a usability perspective, I love it. Clean and easy to read, almost like looking at a kindle.
On the flip side, it would be hard to monetize the site in its current state. If that’s not something you’re intending to do, then power to you. Just keep that passion burning and you’re all set!
As for the theme repository, you know, you can create your own theme site. Just make it available on either your current site or a separate site. Many excellent themes don’t appear on the WP site.