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Re:UPI Payments: 10B Transactions a Month Done, Next Stop 100B by kilotaras on Sunday September 03, 2023 @03:53AM (#37368539)
> This is already a thing, but it works the other way around.

Sorry for being pedantic, but charging "bad customers" $XXX and charging everyone $XXX more, whilst giving everyone but "bad customer" $XXX back, are equivalent.

Re:UPI Payments: 10B Transactions a Month Done, Next Stop 100B by krab on Sunday September 03, 2023 @09:41AM (#37370355)
Only if everyone participates. You'll generally have a third group of "unknown behavior customers". Then it makes a difference what the default price is.