In lieu of that, I like the idea proposed by Chris and Dave where you basically new versions of these slash pages as blog posts and redirect the slash URL to the latest one, kind of like a bookmark. I may start doing these for some of them, starting with /defaults which is, conveniently, already a blog post.

Old slash pages can be referenced and stay at the same URL. At the same time, the most recent slash page gets the default URL name, such as /defaults