of ex-Mormons to criticize the church of which they are no longer a part: [A]postates after turning from the faith of Christ ... have sooner or later fallen into the snares of the wicked one, and have been left destitute of the Spirit of God, to manifest their wickedness in the eyes of multitudes. From apostates the faithful have received the severest persecutions ... "When once that light which was in them is taken from them, they become as much darkened as they were previously enlightened, and then, no marvel, if all their power should be enlisted against the truth," and they, Judas like, seek the destruction of those who were their greatest benefactors. In 1985, Vaughn J. Featherstone, a member of the First Quorum of the Seventy of the LDS Church, addressed students at the church-owned Brigham Young University, calling anti-Mormon material "theological pornography that is damaging to the spirit," stating that "none of it is worth casting an eye upon. Do not read the anti-Mormon materials. That is not the way you resolve questions about the truthfulness of the restored gospel." Apologetic Mormon apologetics and members vary both in their perception of criticism and opposition, as well as what they see as falling under the umbrella of anti-Mormonism. Hugh Nibley, the author of voluminous works in response to books deemed anti-Mormon, including a chapter on how to write an anti-Mormon book, explained why he thinks ex-Mormons criticize the church: Apostates usually become sometimes feverishly active, determined to prove to the world and themselves that it is a fraud after all. What is that to them? Apparently it is everything—it will not let them alone. At the other end of the scale are those who hold no rancor and even retain a sentimental affection for the Church—they just don't believe the gospel. I know quite a few of them. But how many of them can leave it alone? It haunts them all the days of their life. No one who has ever had a testimony ever forgets or denies that he once did have it—that it was something that really happened to him. Even for such people who do not have it anymore, a testimony cannot be reduced to an illusion. Davis Bitton presented criteria on how to identify anti-Mormon material in a 2004 paper published for the Foundation for Ancient Research and Mormon Studies (FARMS) entitled, "Spotting an