Jim,
I guess if one individual's opinion of another encompasses "friendly, courteous, and helpful" information - that individual is allowed to call others names such as "jerk" when he/she deems it appropriate. Especially, if the "jerks" post should happen to contain subject matter one does not agree with. After all sharing information is expected especially by those who do no research and benefit fully from the results of that research. Nice standard Jim - Best, Jim