You use the phrase "technically speaking" pejoratively as though there is some special set of rules that make these countries multi-currency. There isn't. It's

You use the phrase "technically speaking" pejoratively as though there is some special set of rules that make these countries multi-currency. There isn't. It's very plainly correct that many countries in the world use multiple currencies. I assume one of the implications you refer to is that the people have a choice of currencies and hence protection against government sponsored inflation.