The only person I can recall shunning were my uncles. One was DFed for apostasy. That was really hard not talking to him. I loved his wife who came to the meetings. Eventuually he returned and was reinstated but happily left again.
The other uncle was married to Mouthy's daughter. He was DFed and yes I shunned him. Then I think he was reinstated and DFed a second time. After that they divorced and I never talked to him again. He put his wife and children through hell and for that I would never forgive him. He hasn;t changed. Even if they hadn't DFed him I would not want anything to do with him. He has always been a very toxic person - and that is saying something comsidering the toxic levels in my family.