I really like it, dylanbfox. I think being more explicit on the titles would be a nice thing.

My biggest question is where you see the future of this project going. Having a web-based home for my private journaling might be something I'd want, and the crypto seems nice. It does mean that there would never be a social aspect here that would grow a community in that regard. Ad serving for revenue is out because of the security implications. That leaves the question of what your plans are for hosting long term.

You said this was a weekend project, and it's great, but if I were to start using this to store private information that I value, what sort of trust could I have that you'd keep the service going? Is it something you'd try to eventually monetize, or is this a candidate for open-sourcing so folks could self-host?