From the post:
Raving Madmen have a deep connection to the Burning Man. These individuals have not been infused with the Burning Man's magic, but they remain true believers in Ephraim Wade's teachings. Their minds have twisted around a sort of chaotic logic, and they willingly follow the Burning Man's forces into battle. Their words have an insidious effect which turns the mind of even the most stalwart of opposition to their teachings.