"Mormon" is Correctly Used in Proper Names
As I’ve been editing all my scripts to get them more in line with President Nelson’s guidance on using the proper name of the church — so that I can then re-record the episodes — I’ve noticed in my scripts that the term “Anti-Mormon” gets used a lot.
I’m not taking this out, because of the line in the Style Guide which says:
"Mormon" is correctly used in proper names such as the Book of Mormon or when used as an adjective in such historical expressions as "Mormon Trail."
“Anti-Mormon” was the name of an actual group, or party, of people that lived in Western Illinois while Joseph Smith and the Latter-day Saints lived there from 1840-1845. Here is a small Wikipedia entry about them.
One of the leaders of the Anti-Mormon party was a man named Thomas Sharp, who ultimately figured largely into the death of Joseph Smith.