how does that work? do they keep episodes off of regular feeds and have you log in or something? or is there some kind of authentication you have to do in your podcast app?
For patreon it's trust based. Each contributor gets a mail with a link to a private rss feed they have to enter in their podcast app - and you're not supposed to share that with anyone.
I would assume the platform has some measures if it discovers a lot of downloads or requests from very different geolocations too - but that's just me speculating.