Hacker Public Radio
hackerpublicradio.org
hackerpublicradio.org
http://hackerpublicradio.org/syndication.php
If this is deliberate, it seems like a very curious hill to die on. Almost zero mainstream podcast apps natively support OGG, and telling people to avoid MP3 isn't really helping anyone at this point.
Edit: it seems like the page is probably just under-maintained. It still links off to Google Play for podcasts, which hasn't even been Google's primary podcast app even long before Google Play was discontinued.
I already have notes together for one of these as it's a topic near and dear to me. I just need to have some time and energy to record it.
I'm glad to see its still going though. That's awesome.
I think the beauty of HPR is the low barrier of entry to producing a interesting episode. Grab a Mic, and get a ramble :)