They do take donations through Liberapay, where you can use credit cards and PayPal. As for membership, they are a German e.V. (Registered club/society? Not sur

They do take donations through Liberapay, where you can use credit cards and PayPal. As for membership, they are a German e.V. (Registered club/society? Not sure how this translates in terms of both culture and language.) According to a short internet search, you _can_ collect membership dues via other means as an e.V., but SEPA certainly is the standard. Since you need a bank account for an e.V. anyways and every alternative to simple wire transfers would involve fees and just the hassle of setting them up, integrating them into your existing bookkeeping and maintaining all that, I can understand why they decided not to do that (yet) or maybe didn't even think about it. (I can certainly see where you're coming from, I just wanted to provide some additional insight.)