As for the original blog post...
It rubbed me the wrong way. Dismissing a person's preferences as mere nostalgia is dumb. But dismissing the role, and
nature of nostalgia, is also dumb. Nostalgia indicates you liked something in the past, that perhaps you'd like to recapture some of feeling you had when that thing was new to you. There's nothing wrong with that.
(and perish the thought we should discuss our 'feelings' and talk about the
games we enjoy using 'nebulous and quasi-emotional' language'. FYI, I'm preparing a combination legal brief and mathematical proof of why I like the recent Animal Collective album
Merriweather Post Pavilion. Would anyone care to read it?

)
Apparently it's okay to dismiss people who feel a large part of 'old-school gaming' comes from the way you
approach the rules, not from the rules themselves. If you encounter a bloke like that, nod and move on, as if they were muttering to themselves on a crowded street.
This alone makes his whole analysis of old-school gaming look suspect to me. AFAIC, the core of old-school' is a reliance on DM judgment --I prefer that to more prejudicial term 'fiat'-- and player knowledge to resolve tasks/conflicts.
The whole thing strikes me as less an answer to certain (unseen straw man) critics and more a (thinly? badly?)-veiled attempt at saying 'the games
I like are objectively better than yours'.
James M. said:
"If one actually believes, as I do, that games like OD&D, Tunnels & Trolls, Empire of the Petal Throne, and so forth offer something unique that no game published in the last 20 years can match."
Then again, I might be reading (a lot) into this. Like I said, the way it was written rubbed me the wrong way. Perhaps that obscured the point he was trying to make.