I think I figured out what causes the refresh of Janitor and other User-Preference Settings.
Whenever a particular version of any board's catalog is visited with the mobile version of the board navigator (see pic related), it will refresh all the settings for whatever reason.
Generally, this version of the board navigator should ONLY appear whenever the user agent is set to a mobile browser, however, for whatever reason, sometimes, it may occasionally appear on desktop browsers as well.