A person who is disfellowshipped from the organization is dealing with two burdens. First, there is the "sin" that has been committed. One may realize that he has sinned against God's moral principles as laid out in the Bible and may feel a tremendous guilt over this.
Then, there are the reprecussions that happen because one is disfellowshipped from the organization. The stigma of being labelled and the pain of being shunned are difficult loads to carry for any person. The lack of love and mercy in the congregations make it almost intolerable for many.
What is important for a person to discern is that the two are not mutally compatable. One who has sinned against God can be forgiven by God through sincere repentence and evidence of not repeating the error. When God forgives there is not probational time or conditions. His forgiveness is immediate and complete. In contrast, the Watchtower Society and its members seem to relish in the pain and suffering of the sinner. Even after one is reinstated, the person has to live with the knowledge that his sin has been talked about by those in his congregation as well as those in other congregations. This shame is now part of his/her personna.
In the balance one can easily see that it is much better to try to please God than to please the members in the Watchtower organization. The "love" that Jehovah's Witnesses boast about is a myth. Genuine affection and love is not based upon loyalty to an earthly organization. Rather, it is the kind of love that Jesus showed when he spoke of the shepherd who left his flock to seek out his lost sheep.