then it would be taxable? and i think it would become overrated and it will decline.
Not gonna happen. If people want this to become an international currency it is because of it's good behaviors like a tax-free money, secured transactions and anonymity.
It will be only taxable if it gets green signal from Government and that is never gonna happen, so we don't have to pay taxes on it and that is the best advantage.
don't you think that bitcoins are already an international currency??? Which ever country you are in, bitcoins are already recognised. And most people in the internet are already into it and using it. It this still does not consider bitcoins as international currency, i don't know what else to call it.