Problems with the use of gm/player skill

Just read It is time to ditch the "good GM" and found the aproach mislead. While I do agree with most of the ideals aspired to in the post it muddled ideals of play with an analysis of gm skill and fails in the parts where it actually is analytic. Aproaching the topic of GM or player skill the first problem begins in the attempt to grade or quantify it. What players and GM need to bring to the…