In exploring re-theming the blog, I discovered that a plugin I’d wanted to use to do some bulk cleanup of post titles was failing to work because of my theme, somehow; it works just fine under an existing, properly-made theme. I’m struggling now with whether to take that as a sign that, yes, I need to abandon the custom theme and switch to using a child of a native WordPress theme, so any tweaks are built atop a theme that functions properly all around to begin with. If I do this, several things will break, and I will have to think about what features and functions matter to me and which I can suffer setting aside.