Wanted to add my 2 cents:
I have a df'd son who is shunned by his grandparents; he has been out 15 years. He long ago left the things that he was df'd for, drugs.
But since he has not bowed and scraped and lied to get reinstated, they will have nothing to do with him. When the grandparents wanted to see his daughter without him, he said that was not going to happen, so they shun him.
So, to recap: he is not using drugs, he is done. They still shun him.
The reason for their shunning is in reality that he refuses to become a witness again.
The WT of course sees that it is to their benefit to demonize ALL df'd people so that members will not realize that the majority of df'd people are NOT evil but just don't want to be witnesses.
Of course, if you are a pedo and deny it, you get to walk freely among the sheep.