A couple of month ago, I received an email from Richard Stallman who advised me to setup a way to receive donation via bank. That was indeed missing in my alternatives. Bank transfers are protected by banking secrecy and don't require you to sign in a new platform.
Therefore this service is a really good way to send money, especially within Europe where you can transfer without fees, and it is as simple as copy/pasting my IBAN number. If you donate this way; don't forget to add your name; I'll write it at the end of the next episode of Pepper&Carrot!