Alt. summary: "because I'm a professional curmudgeon, and my non-facebooker status will offer me an easy (hopefully provocative) blog post."
Really? I thought his point was "because it is a closed system".
"Facebook is a simple system for the masses that do not really care about technology and do not want to learn anything new except something easy like Facebook."
"There is no reason for anyone with any chops online to be remotely involved with Facebook, except to peruse it for lost relatives."