When I first set up the forum, I renamed “uncategorized” to “everything else”. That was a mistake, because Discourse couldn’t decide if it was a real category or not, and often left the category field blank for everything-else stuff. It also made alerts in the category work poorly.
I created a new “everything else” category and moved all the posts over, then hid the “uncategorized” category.
This will probably break everything irrevocably, so apologies in advance and it was fun while it lasted.
