These latest replies don't seem related to the original post, but they appear related to what I'm experiencing so I suspect I should stick with it.
If I set
"rulers":  (convenient for PICO-8 work) in Settings - User or some other user settings file, it works. If I then set View > Ruler to anything, including None, the "rulers" setting stops working but only for the file type (or syntax type) that was active when I made the menu selection. I have tried all sorts of things to get it back such as setting the menu to None or changing the "rulers" setting to other columns, empty values, and the same value as the menu, but nothing works. I even tried changing the file type to another syntax type and back. I expect reinstalling Sublime would work but that is such a harsh move for such a small annoyance.
If this can't be made to work as intended then consider a setting for adding to or overriding the options in the menu. That might be more useful anyhow.