I'm none of those things in the scripture, yet I'm shunned. A person that fornicates once, gets DF'ed, then goes on to live a very moral life is still shunned forever unless he comes back to the cult. What constitutes a "brother or sister"? Only a person in the same faith? If so once a person leaves that verse gas no further hold. Why are greedy people still non-shunned JWs? Or drunkards, and we all knew brothers and sisters that drank too much at least once, which is apparently all it takes where sex is concerned, right?
That verse is so full of holes. That's the problem with taking verses and creating rules. What about Jesus saying to forgive 77 times? Pick and choose to support whatever you want. It's so easy with the Bible. It's not consistent whatsoever.