I just looked on Twitch, where I would argue the case for “receiving digital content” is much stronger.
If I purchase “bits” in the Twitch app it is an in app purchase through Apple. However, I can just go on Twitch.com and purchase bits there and then use them on the app later. Tangentially isn’t this the same case for Damus? I buy BTC somewhere else and use it? Does Apple want to solve this problem by letting me buy BTC through my Apple ID?