I built a prototype of something like you describe, and felt that it really helped keep myself accountable. Happy to add you as a test user when I re-deploy it! Email is in my profile.
2 karma · joined March 8, 2012
Hosting one's own blog is trivial, and I'm willing to bet that your target audience is more likely to use a static site generator like Jekyll or Pelican.
I made it because I found a simple webapp at one point that did this, but forgot to bookmark it and never found it again.