If the intent was to keep up with inflation in a way that maximizes local profits, pegging to the US dollar makes no sense. The games wont sell at this price in any appreciable number. Steam could have easily used other tools, like some dynamic pricing model, to maximize local profits. The only thing pegging to the US dollar does is combat key resales, as the comment you are replying to implies.
But that would require steam to override the game devs price, which is a big nono. For the vast majority of these games, valve is not the publisher (who usually is in charge of deciding prices)
If the intent was to keep up with inflation in a way that maximizes local profits, pegging to the US dollar makes no sense. The games wont sell at this price in any appreciable number. Steam could have easily used other tools, like some dynamic pricing model, to maximize local profits. The only thing pegging to the US dollar does is combat key resales, as the comment you are replying to implies.
But that would require steam to override the game devs price, which is a big nono. For the vast majority of these games, valve is not the publisher (who usually is in charge of deciding prices)