Each individual case is different. I know there are those who wish to move on and try to forget ever having been a JW. They choose not to participate here. Some participate here for a while, then go away. Some of them come back.
If you served in Vietnam, you are part of a group that no one else can entirely relate to. You served, did what you thought was right, then were persecuted and treated wrongly by your fellow countrymen. One doesn't just get up, walk away, and start a new life. There are scars. There is PTSD. There is trauma, anger, and a need for peace within.
We have been through a unique kind of experience as well. It is useful and beneficial to talk about it and help ourselves and others recover. People who were never JW's do not quite understand why we did the stupid things we did. They don't know what one goes through in escaping the Watchtower and facing shunning and, after years of faithful service, being regarded as nothing by the very people we were serving. We need validation from others who have been through the same thing.
Regards,
SandraC