Excommunication is not intended to be the end result for the member. After a member is excommunicated, local Church leaders continue to work with the individual if they are willing and desirous to do so. The ultimate goal is to eventually return to full fellowship.
A lot of this comes from misunderstandings about what the Church is, and what is represents, and fearing that they will lose a loved one if investigating the Church.
The first reference to Kolob (pronounced co-lob) comes from ancient records that we believe were translated by Joseph Smith through the gift and power of God.