I can't help but wonder in what relation the resources invested into tracking all of this down are vs. reclaimed tax (or lost tax revenue if they just simplified/reduced the domestic tax rate - don't forget there's a currency exchange rate risk associated with shipping your money out to Switzerland).
> don't forget there's a currency exchange rate risk associated with shipping your money out to Switzerland
Actually, there isn't. You can have accounts denominated in USD, JPY, EUR or any other sufficiently mainstream currency. It's even free if the amount is big enough, which is actually not that high (low five figures).
Don't worry about the banks though, they make it all back and more in their ludicrous transaction fees.