We do get emails asking for discounts but I personally feel that it is unfair to the previous buyers.
But I am keeping an open mind about it. Is there reliable way to charge people in other countries different price?
He's got an episode on his podcast on how he implemented it [2].
It does sound like some work and I'm not saying you should discount or give away your work though.
[1]https://wesbos.com/ [2] https://syntax.fm/show/233/hasty-treat-purchasing-power-pari...
Sometime I choose to give a deal to a person for my own reasons, so my one-off pay portal is used there as well.
Or one-off a client for additional money.
It took less than an hour to build, years ago, the functionally it's a one off invoice just tightly integrated with my business and optimised to two inputs. #bpaftw