Yes, in line with Obladi ‘s thought I have an explanation for all the INFJs in this thread.
Keep in mind that this personality type is naturally inclined towards helping others. Most who post in the secular connections forum are not inclined to attend AA meetings. AVRT, for example, is a comparatively solitary approach to sobriety. Non AA INFJs, seeking an outlet for their inclination to be helpful, find that SR provides this and end up being over represented in this forum.
Even this however does not seem to fully explain the 33% figure which is thousands of times more likely than chance. (Can anyone do the math?)
Obladi, I find that INFJs do tend to attract each other. Several of my good friends are INFJs (far more than is likely by chance).
Onlythetruth, I believe that this "protective wall of the human community" is very important to almost all who are recovering. Yet for those regularly visiting secular connections forum most of all. You folks who help others here deserve much credit.