I've been enjoying beta testing this and so happy this is out. It's amazing, I've been using it as my only podcast player. I've always loved learning about outstanding podcasts from my social bubble. Someone posts something to a group that they find interesting. It's not possible to listen to every episode of every podcast I like, so social selection works best. Now I choose who's opinion on quality podcasts I enjoy and it just works in Fountain, even if my friends don't use it directly.
It is just a beautiful UX around what most of us have been doing manually - listening to their friends, or having content curated in a decentralized group of people we choose.