It looks like PayPal, which Ardour seems to use to process donations, takes a 1.99% + $0.49 fee per transaction. Given that, would it make sense to allow yearly subscriptions as well? Would mean $0.49*11 = $5.39 more per person and year.
Edit: Fixed my math.
The vast majority of are micropayments 6.00% + $0.05
So for a USD donated, paypal only gets 11 cents.
Ah, didn’t know that. Sorry for the noise then, cheers!