You forgot two points in your lifecycle: - Irregular posts apologizing for not posting more often. - Various defeated remarks about "not being read by anyone, anyway".

At least, that's how my personal blog (and a few I tried starting) went, in addition to what you already mention.

I think that it's an awesome ideas, the same way services like "twitpic" offer hosting of free-floating images without the need for a hosting, you offer free-floating blog posts without the setup. I like it!