It showed up/activated-itself with a forum upgrade, reinstallation (server move), or some forum change I forget exactly. I vaguely remember Indirik mentioning it as probably needing to be removed as we don't use it, but then it never did. Story of BM. Indirik was our most forum-oriented volunteer and the forum hasn't had the same attention since he slid away. Fortunately with a forum merger looming, I'm certain Andrew will clean up such aspects and provide renewed forum attention.