Perhaps I am wrong, but it just seems to me that the vast majority of people who post on this site leave the WT, not for doctrinal reasons, but because they realized (myself included) that the WT is just a big scam. Who really cares if God's name is Jehovah or Jesus or Fred or Biff??? (Even the WT admits that it doesn't pronounce his name correctly).
The WT is just like a pimp who scares its people into going into the street work, peddling books and magazines at their own expense. And they are threatened with death if they don't! The WT scam is no different than the Nigerian Prince scam. They steal your money and your life.
Anyone who leaves the WT over doctrinal differences can simply go out and join a different religion that is more in line with their views. And it is as simple as that. No need for bitterness, no need for counseling.
There are still many people who inside disagree with WT doctrine, and those who see through it for the scam that it is, but who continue with the organization for various reasons. Some because of family, some who just feel comfortable with it, like an old worn shirt.
Personally, I am over the bitterness part, at least as much as possible. Now I just look at it in an analytical way.