This is also apples and oranges. Running credit cards involves knowing exactly where people are located. You do in a real sense “decide” to do business with people in a given country.
Not every website does that. Some just serve posts to all comers. Some allow people to upload an image. Deducing where those people are from is non trivial. When I blog something I’m not “deciding” in any meaningful sense to “serve” people in country X.