Your information is useful, thanks. There is felt that acts as weatherstripping as I think you know. The seller, who restored it, said he wasn't in the habit of using the sunroof, but demonstrated several times in his driveway that it opens, albeit somewhat stiffly. My assumption is that he had never tested it at speed after he installed it. His contention was that the felt hadn't been compressed and this may be true. He figured if I used it a few times, it would get better -- as it indeed did (and not because the sheetmetal of the roof got bent. As I said I suspect that the thickness of the felt combined with the non-wind-tunnel-tested aerodynamics together with the rapid airflow at speed caused the roof to press up against the lip marginally but enough to scratch.
So, the sunroof did not get scratched on opening when the car was parked, and I couldn't hear anything bad at speed because of wind noise. My assumption when opening at speed was not that I was damaging the roof of my new pride and joy, a possession of only a few hours, but rather that I was tamping the felt down as necessary. Indeed the roof slides nicely now. I am not a happy camper.
I call this a freakish problem, contingent on the speed as it is. I can't take the blame and I don't really blame the restorer. He did an A+++ job otherwise.
Calling me an idiot between the lines is really adding insult to injury; bad bedside manner, Doctor.