I tried this. It worked well, but none of my users used it…
- I created a group containing myself (as the “guinea pig” user).
- Created a category and gave that group Create, and everyone See/Reply.
- I added a theme component to add larger category descriptions (so I could put some “this is a blog” boilerplating up top)
- The group is necessary for the security, but it also would allow groups of people to co-author the blog
I was thinking I’d later make a parent Category, “Blogs” to sit above the various blogs if it came to that.