Ergo, I am right back in need some way to convert it into my local currency. Except far less conveniently than just letting my bank take care of the exchange, as they would with an international wire transfer.
Also, as I explain elsewhere, the forex thing is a solution looking for a problem: https://news.ycombinator.com/item?id=16854526
The reason I'd pay somebody to read an email is so that I can do business with them, and for a fair bit more money than I pay for the email. That involves one of us paying the other. Which in practice will mean a real currency, not cryptotulips.