The only valid SCRIPTUAL reason for disfellowshipping is if someone has committed a serious sin like having sex with his father's wife as Paul said and is unrepentant.. OR if someone has denied the faith and are deliberately teaching others against the true gospel to mislead them.
So unless JWs really do have the true faith, they cannot SCRIPTUALLY disfellowship anyone unless they are unrepentant over a sin which is as serious as Paul said. Yet in most cases the disfellowshiped person has not commited such a sin as that.
Therefore, if there is any doubt that JWs have the true faith, the disfellowshipped person is usually in less trouble with Jehovah that those who have wrongly disfellowshipped them.
God is love and put that quality of love, the image of Himself, in the heart of mankind. God is merciful.. but Satan has no mercy.. Satan is out to destroy.
Those elders who have been involved with disfellowshiping are aware of the conflict between what their heart tells them and the legalistic way they follow their religion.. if they are honest with themselves.. if they have a heart at all... and I believe they do.. but which will they follow? This is a very serious matter.
JWs are being tested by Jehovah himself and I know this is true. The hurt and damage caused by an unscriptural disfellowshiping, is a very serious sin against Jehovah who has mercy. The angels (and demons) are watching to see if they put a unscriptural disfellowshiping above the mercy and love of God which should be in their hearts.
Even if there are scriptural reasons for it, a disfellowshiping that causes broken hearts and destroys families and even suicide in some cases.. can be a greater sin that if a person has committed fornication.
If people blindly go ahead with a disfellowshiping that cause so much hurt and even death, it is in effect spiritual fornication with the demons who want to destroy.
John