Speaking of subscriptions:
2) By-works funding model support.
Patreon had two foundational funding models it supported, and while Patreon has introduced a variety of complexities and alternatives, these remain its core offerings.
One of these is trivial: monthly subscriptions. Like I said, creators can get that from PayPal if they don't care about pseudonyms. Every supposed Patreon substitute is just a monthly subscription service.
But Patreon's much more interesting funding model is not by-month, it's by-work.
This is where things get very hard for outsiders to understand. For emotional reasons.