Maybe you should check the posting history of some of them, especially the ones who you see posting regularly in the religion forum. A lot of them never leave the Religion forum. For many this is the only place they post. This is their mission field. They post their little Book of Mormon passages on Catholic threads, Protestant threads, Hare Krishna threads, Creationist threads, whatever. They pretend to be Christians just like everyone else, yet they are here to convert as many of you GENTILES as they can to Mormonism.
They rely heavily on guys like you, Christian enablers, who carry their water and who are more than willing to come down hard on anyone who criticizes them or their abberant teachings, doctrines or practices, but is unwilling to come down hard on any of them, no matter what kind of nonsense they post here.
Pot meet kettle. Most of the Carpet Bombers stay here as well. Unless they meander over to the News forum for a bash Romney thread. Mormons are as sincere in what they believe as you are. But I guess you're correct because the spirit tells you. Barf.
As I have said repeatedly, I don’t read the religion forums, at least not on purpose, because I have plenty of places to argue religion with smart religious people, and don’t need to do so on a conservative political forum.
That I occasionally wander by accident into religious threads doesn’t change my general disdain for them here.
If there are people who joined FR simply to proselytise their religion, in my opinion they are violating the purpose of the site. But that is just my opinion.