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I use the Vanilla-hosted ("Vanilla Cloud," apparently) forums at Plex.tv, and I saw today that all the forum categories I have had hidden for the past few years were suddenly unhidden, and the 'all categories / followed categories' links were gone.
The Plex folks queried Vanilla about this, and learned that this was a deliberate change. I'm here to ask that you put it back the way it was, or give me some other way to hide categories from the list.