It is an unspoken rule but it is vigorously enforced as any ethical person can see from many of the posts on this thread including yours.
You are just being silly. You suggest that what I posted is part of enforcing an unwritten (oops unspoken) rule out here concerning the criticism of Israel's Jews not caring for proselityzers in their neighborhoods?
HEY FREEPERS, JEWS IN ISRAEL DO NOT WANT TO BE CONVERTED TO CHRISTIANITY, AND ESPECIALLY BY TOURISTS FROM GERMANY, OR ANYPLACE ELSE.
OH, AND WE ARE NOT ALLOWED TO DISCUSS THAT FACT ON FREE REPUBLIC BECAUSE IT IS AN UNSPOKEN RULE HERE.
I just found out about that longstanding FR rule!