The judge is not LDS. No matter what subject that comes up on FR that has some, even distant relationship to the LDS Church or a member, many freepers, regrettably jump on the Mormon-bashing wagon. It does get tiresome.
The Judge is Fundamentalist Mormon residing in the Colorado City area of Utah/Arizona. The basis of their religion is the Book of Mormon, Doctrine & Covenants and other standard LDS works.
They consider themselves Mormon, just as LDS adherants consider themselves Christian.