Indeed - Adam Curry and Dave Winer...
As for Apple produced podcasts - I have no interest in more overproduced NPR/ Gimlet, style scripted fluff. "Science" podcasts given by wikipedia readers that didn't even pass highschool physics or political commentary by video game nerds that never read a foreign newspaper. Replete with a distracting underbed of tingly music...
As for supporting podcasts, I donate directly to the shows that I enjoy listening to. Adam Curry did a reasonable exposé recently on why the big podcast network's are unlikely to be sustainable in the long run.