This kind of thing is getting so old. But something just occurred to me.
The irony here is that one of Winer's avowed reasons for getting into blogging was to have somewhere to put the record straight (when he was frustrated with the tech. journalism about Mac software in the 90s, when he gave up giving quotes to journalists etc.) But the blogging "river" format actually allows such definitive positioning statements to scroll off into history and get lost. That's why despite 11 years of Scripting News people still don't seem to know what he says and thinks about RSS etc.
Wikipedia, in contrast, has a single static page which is fiercely contested - partly because it's considered to be authoritative. But mainly because it's a well labeled single static page that Google (and so the world) knows how to find.
My advice to Dave would be to take a leaf out of Andrea Dworkin's book and have one static FAQ on Scripting News, prominently linked and discoverable (while flattering, "Who is Phil Jones?" doesn't quite make it from the Information Architecture angle) which just states his claims about RSS / podcasting etc. Keep it up to date when there are new misunderstandings, but generally allow it to accumulate the links and "authority" which currently goes to Wikipedia.
At the moment, Dave's responses to his critics are scattered, intertwingled with ephemeral issues, over dozens of blog posts and comments. No wonder people are still so vague about this.