I don't see what 'confusion' could come from it. You can compare for example with Amazon, it has .com, .jp, .it, .uk, .fr, and so on, people don't confuse with .uk if they are from .it.
I think now the US citizens are used to that. And nowadays creating a duplicate platform targetting Americans is the next trend. See Binance or even Bittrex recently.
That's the point. Isn't it quite inefficient with such duplicate platforms are made? Or is it actually better for duplicate platforms so that the server wouldn't possibly overload?
I don't know, the idea I had was a kind of a central hub for a process like exchanges where pretty much every country that is registered in the said hub could trade there directly.
No, it isn't inefficient and I can tell you why, at least in my opinion.
Despite all the resources and money spent on, it's still worth the effort. The American market is so huge that they can't avoid it. From an economic point of view for enterprises, refusing this market is like shooting yourself in the foot. Maybe even some platforms wouldn't survive in the long run.
You can see the same thing in the real economy when you see multinational corporations creating subsidiaries in foreign countries to reach, another market/country.