> my-blog-article-title.md seems enough, and dates usually feel like clutter, since titles are distinct as they are and you don't really need the date in the filename to do anything useful.
I love to see when a page by posted just by looking at the URL. It also avoids naming collisions. For a static site, not rendered from a db, I wouldn't want to store every post ever written in one dir either. How well does that scale? Yeah, you can probably store 100K files in dir, but it will become unwieldy and slow to load when browsing a lot sooner. Just a dir per year probably solve any such problem.