This is what Steam will probably do in the future, and Itch.io is already looking into it. There’s a reason all this garbage hasn’t splashed GOG. GOG is based in Europe, where protection laws would slap silly any financial entity trying to pull this stunt on an European company (pressure groups have weaseled censorship and moral panics with other strategies though, just not this one), and they have so many more payment processors that PayPal, Visa and MC would just be dropped entirely and immediately for any of the other dozen or so alternatives. The issue is that in the US and Australia, the three headed shit dragon already lobbied governments to pull the ladder behind them, so no other payment processor could take their place or compete with them, establishing a legal oligopoly of the old money finance club. They won and have this power due to systemic and political failures decades in the making.