Files in a sub-folder called Drafts are not published to your site. Instead, Blot creates a preview file which updates as you make changes. You can share the preview file with others. Preview files should be opened in your web browser and require an internet connection.
In the folder above, Anecdote.txt.html and Unpublished.txt.html are previews of the draft posts Anecdote.txt and Unpublished.txt.
No, preview files require an internet connection to update. However, you can work offline on the draft file and sync it to Blot at a later time.