Having been an unbaptised JW and a baptised LDS, I can testify as to their policies. Yaddayadda's friend is correct-at least in WA state. In Utah, I imagine if you go out of the church in an angry blaze of fire, you will offend friends who might shun you on a personal level, but that can happen in any church (and from what I have seen outside of both of those churches, there is plenty of personal shunning going on). I have not seen any corporate church directed shunning in the LDS church. My friends who left that church still got together with other still LDS friends at our class reunion. I am greeted joyfully by old friends when I see them. I was SHOCKED when an old JW friend inquired about me at the recent FTC convention-because NO ONE has mentioned me in 25 years that I have ever heard of (I imagine it is the first conversation that my mom felt was repeatable). My dear old excommunicated, gay, chain smoking alcoholic mormon friend was quite chummy with my former missionary, now bishop and father of 5 friend at the reunion. They were both lovely to me. There were others, but I they were not in our tight knit group of friends.