A couple more things I noticed after a short play around:
* It's not obvious how to (or maybe even not possible) to find a list of your published guides.
* It's not obvious how to (or maybe even not possible) to delete your published guides.
* You have to publish your guides right away, I doubt anyone wants to read my first draft.
* Your source code editor does not accept tabs which means everything has to be copied and pasted in. Have you though about using something like ace? https://github.com/blog/905-edit-like-an-ace / https://github.com/ajaxorg/ace