Short answer:
bg-archive was infected by a spammer/virus, and because of the way Prime configured it, I did not have the ability to update/clean the forum. Nor do I have the forum data, as the BGs saw fit only to give it to Prime when we transferred. I have been trying to get in contact with him, but no such luck.
My hosting provided me with a deadline of this morning to remove all infected files or have my account suspended. As I was not able to clean the bg-archive in a non-destructive manner, a destructive manner was necessary.
The MMF and Storm Shelter forums are still here because they were never infected, but my hosts strongly suggested I update them in order to remain in their good graces. Thus some spillover.