Or even just a personal community which you use as a blog. It's even suggested in the documentation. The key being that you can make any community "moderators only", meaning that only moderators can post, while anyone can still comment and vote. Which is just like a blog, except if it's convenient, you can run it out of any instance that someone else is running. And then, with a tool like this, load it up to your own personal web page, and have a public blog that's automatically federated!

Of course, running it out of your own instance would give you more control, though as the moderator of your own personal community you have a good deal of control already.