Go read the jw.borg FAQ do witnesses shun former members. This will give you some insight into how the twisted mind of a jw works.
First of all the FAQ is clearly the result of the disfellowshipping criticism, however, the response is generally aimed at people who just sort of stop going to meetings and don't leave, or get in some kind of trouble. Its extremely deceptive through subtle manipulation.
They will tell you how its not bad, its loving, they will never call it what it is, shunning! To reference wayward pines when they murder someone for being a free thinker/trouble maker, they don't call it murder, its a "reckoning". Scientology, other cults, they all have their terminology that makes it palatable. We don't shun, we disfellowship. It has a different name, and in their minds the definition is not sadistic its love.
Its a sensitive subject so be careful. Jws have only been shunning about half their existence, something most modern dubs don't even know.