Jim,
I am sorry about the pain that you are feeling in your friend's decision to return to the org. The wealth of information found on this and many other sites make it difficult to understand their decision. I cannot imagine any experiences with ex-jws that would convince me that leaving the org had been a mistake.
Over the past 2 years I have found your posts to be among the most interesting and informative on this board and I was disappointed when the wealth of information on your removed posts was not restored. Many individuals struggling with their faith would benefit from your experiences.