Coming back to this, which no one had any ideas on, I think that the best solution is to wipe titles from what are meant to be untitled posts. I’ve fixed the wp-posted-today plugin I use for the On This Day page so that if a post doesn’t have a title it instead will use the first six words of the post’s content as a stand-in for a title. (This is the same fix I used for <title> elements on posts.) For this approach to work overall, however, I still need to find a way to interrupt things like the_post_navigation() in the Twenty Sixteen theme’s template files, so that if a post doesn’t have anything for %title it will do the content trim instead, rather than simply saying Next Post or Previous Post. Unfortunately, this is beyond me.
Bix dot Blog
The unsupported use case of Bix Frankonis’ disordered, surplus, mediocre midlife in St. Johns, Oregon.
No fear, no hate, no thoughtless bullshit, and no nazis.