My experience has been mostly no shunning. As a matter of fact I had lunch last week with my brother who is now an elder. Since moving back closer to family I have met him for lunch 3 times and he is very nice to me and the few times I spoke to him on the phone when we finished the conversation he said 'love you'. I was rather shocked at that as he and I had never been really close.
He is married to a convert who is now a pioneer. My sister in law was the instigator to start a shunning campaign against me back about 20+ years ago. At the time I had been inactive several years and had allowed a boyfriend to move in with me. Because of the BF she got the whole family to shun me. That was near my parents' 40th wedding anniversary. She and my JW sister threw a big party for them and I was specifically not invited. The invitation came addressed to my son and daughter only.
Once I broke up with the boyfriend and he moved out they started talking to me again. Very weird. To this day she is friendly at times and was especially helpful when my dad was sick and passed. A few yrs ago I received an email from her saying their daughter (Bethelite) had told her she was going to have a baby in 3 years. I wrote her back and said that means they will have to leave Bethel. Will they be moving to this area or out west where his Mormon family lives. She never answered so I don't know if she was shunning or at a loss of words once she realized her daughter would have to leave Bethel. Nothing else said about them having grandbabies. I just keep my distance from her most of the time.
One of my younger sisters was DF as a teenager and has been living with mom since shortly after dad died about 3 yrs ago. Mom has never shunned her even though she has 5 kids with a few different guys and is 50 yrs old now. She did a lot of drugs and taught her kids that drugs are fine. Most of them are on welfare and on drugs now.
Even my JW sister does not shun the DF sister. She also does not shun me but did ask me if I was dating. Guess if she thought I was having sex she would have to shun me again. : )
Very Odd people in the cult.