I'm sure he does a nice job.
I always kept a photo file so that if asked I could provide photo evidence with serial numbers that all parts had been stripped properly. Maybe he does the same?
You say much ado about nothing but I've seen plenty of half jobs over the years so it's always nice to see photo evidence and my comments are directed at the half job photos in that listing.
I know you've painted a few, can you post a link to some pictures of your repaints? I'm always interested in other painters work.
There was a user here who posts infrequently who repaints. I almost bought an M2 from him but was utterly disappointed. He was from canada, if you have any doubts that whoever you find might be him I'll share via PM.
You don't need to start with paint stripper. First try a solvent like lacquer thinner. Moisten a clean white or light colored rag with the thinner and rub it on the painted surface using finger pressure. If you see black on the rag you can remove the unwanted paint with the lacquer thinner. It may take some elbow grease but it may keep the original finish intact. If there is no black on the rag it's time to go with the stripper and a repaint.