At first when I saw the title, I thought this was done to stop people who VPN swap stores. The article however paints a different picture: Developers do not want Lira or Pesos since they are too unstable. Doesn’t make sense to price a game at X Argentine Peso if next month X is now 30% less valuable. If you have too much inflation, no one wants your currency. Even the Argentine government or presidential candidates said something along the lines of wanting to swap to the USD too.

Which wouldn’t help much, because then they would depend on the dollar, the properties of which are developed for the US economy, not Argentina’s. But for steam? Whatever, charge in dollars, it’s easier.