Meniscus, thanks for the rational overview; now for the irrational.
I fell in love with a Mormon guy. He was a hard guy not to love. He is struggling with "Same Sex Attraction", the phrase that gay revovery programs use for homosexuality. I tell you, it is a brutal ride for a gay man to grow up Mormon. Your pastor reccomends a gay recovery program, you go before a board to be reviewed, and if you don't "recover" you are cast out of the church.
This is a cult I'd like like to belong to if I wanted to raise kids in a cookie-cutter, Leave-It-To-Beaver world. Seriously, these folks make the Family Values coalitions look like NAMBLA. When you go on mission, three other guys watch you for two years to make sure you don't jerk off. Think about that. They expect you not to orgasm (except for wet dreams) until your wedding night.
Your friend has found a haven, one that has a lot of attractions, as well as a lot of pressures. Be a friend to him, support him in his journey the best that you can: learn about the LDS and be informed. Be prepared for him to set boundaries that you might consider unreasonable. This is a crazy world, and this chuch thrives on creating the illusion of a safe haven. For some of us, all we have is our illusions.
P.S. All you closeted Mormons on LPSG because you can't get over needing to look at cock, let's hear from you. I know you are out there.