Libre blogging software recommendations?

I am looking to set up some blog-like website. I'd like users to be able to:
- register
- make posts
- maybe comment

I want the content to be viewable by the public.

I'd like to be able, as admin, to:
- easily moderate (including limitting by number):
- new registrations
- new posts
- new comments

And it should be ethical. I.e. the website I set up should definitely work without JS. It'd be cool if the JS that's nevertheless present (if any) was served with license notices and links to source. I hope to be able to install all the necessary software from Debian `main` repo (although I could use some other ethical repos, too).

I might end up writing my own platform, but first I wanted to see if there are any ready-to-use solutions that fit my specific needs. There might be some I have already heard about (who hasn't heard of Wordpress?) but I happen to know too little about them so I'd like to hear some opinions anyway :)