The funny thing about that is that HN used to say if the fee was 4% it's because that's what it costs and if it was any lower the card networks would just abandon the country that forced it to be lower, since they'd lose money.
> HN used to say if the fee was 4% it's because that's what it costs
Do you have a link to the comment you're thinking of?
> HN used to say if the fee was 4% it's because that's what it costs
Do you have a link to the comment you're thinking of?