I explicitly said I wasn't disagreeing with his point, just pointing out the lack of courtesy that I find endemic in rantings that are posted here. Your posting of the "hierarchy of disagreement", on the other hand, looks like classic middlebrow dismissal.

On yet another hand, courtesy and manners are social inventions of aristocracy that constitute a tone argument, which is pretty low on the PG hierarchy and at any rate is an argument that benefits only the (in this case) VCs.