I suppose that would the dream of the GB and the high hierarchy of the WT, better know today as JW.ORG: that everyone quitting the religion stop talking about all the issues involved in the religion.
If no one spoke openly in sites like this one, some people like me would probably have last much longer until realising completely what kind of organisition it is.
Plus, there are many that even after abandoning physically and mentally the WT, they have to face with still in family.
In the long term, I agree it's mentally healthy to forget a past chapter in you life but circumstances may differ between each of us.