So far we have 30 submissions, great work guys! :)
Here is a % based compilation of the data, it shows how common the different letters are.
I must admit that I am quite surprised that the chart is so "even", the only things that jump out are the Intuitive and Assertive types.
Based on this data the average Ex-JW on this forum is INFJ-A but that is of course a oversimplification.
INFJs tend to see helping others as their purpose in life, but while people with this personality type can be found engaging rescue efforts and doing charity work, their real passion is to get to the heart of the issue so that people need not be rescued at all.