The discussion revolves around the disappearance of the ‘Category’ link at the top of the forum, reported by Slowhand on June 2. The issue was not caused by the Anime Network, suggesting a Discourse-side change. pfaffman explains that a site setting called top menu controls the menu and suggests checking system logs for changes. Slowhand notes they are not an admin and asks about the keyboard shortcut gc, which pfaffman clarifies can be used by typing ? to see all shortcuts. JammyDodger later confirms the issue was resolved in a Discourse update.
Sometime between 9:15am CT & 12:30pm CT yesterday (June 2), we lost the Category link at the top of our forum. I checked with the Anime Network people and they said they have not been tinkering around with it, so wondering if something happened from the Discourse side.
Before and after screenshots:
I use the Categories often to update the Main Page. Can we get this back? I notice that this Meta site no longer has the “categories” on the Main page either.
Keyboard short cut gc will take you there.
There is a site setting that controls those menus. I thnk its called top menu.
You can check the system logs to see if someone changed it.
Not an Admin, so I’ll have to find someone to look.
Also not a computer person, “gc” with some other key?
Just type it (except when you’re composing a message) and type a ? to see all the shortcuts.
A little belated, but just to round this off… This was fixed in: 
