I like most people here do not need you explaining the grading system. Many here have been climbing longer than you have been on the planet and know more climbing history than you ever will! Ratings are very subjective and if you have climbed in many different areas you would realize that.
We are in a beginer forum and we discuss about the objectivity of the rating. The method used by Leight Orternberger exist(http://www.supertopo.com/...php?topic_id=1039859). It most ber very similar as they used comparaison method. There is also some other method used in France for the skill of the climber. With competition, they study the sport very deeply. I think that it is great that some people keep the NCCS system as it make the sport more accessible for many of us.
That doesn"t means that people most know that, but at least that the theory exist. And it is normal, to be able to discuss that in a climbing forum.
Some people, like Brochu, are very agressive, it is pratically intimidation.