I had a colleague who had been brought up a Morm but had never been baptised or become a fully fledged member. I always remember her telling me that her sister had and had then got pregnant and was a single mother and how the Mormons had all ignored her and wouldn't have anything to do with her. I told her that I thought that was bad as this was a really tough thing for her.
Little did I realise that it was very similar to the shunnign that goes on with JWs. I suppose that was one of my first thoughts that shunning DF'd people was wrong.