There's a CSS rule that's hiding it. But after looking at a couple other classes and their rules, that particular rule doesn't seem necessary since its parent class hides it when a user is logged in anyway.
I haven't dabbled in frontend in a long time so inheritance rules are a distant memory, could this specific rule override those of parent container class? Messy code or just a temporary hiccup? Link is missing for me both on Chrome and Firefox, clearing cache does nothing.