If you need to 'cash out' it's not a 'currency'.
B) Even though my point does not depend on whether you're right or wrong, you're wrong. I have USD in my bank but I have to cash them out into GBP. So according to your "reasoning", USD is not a currency? Of course it is, you're just talking nonsense.
Either a currency is something you can buy things with, or it's a label with exchange rates. In the first case it can't be something that needs to be cashed out. In the second case you can't buy something and the thing you buy other things with is money.
You're usage of Bitcoin, money, GDP, USD and currency is willynilly.
Your usage of the English language is wilynilly.
I didn't personally attack you. I said you have added nothing. That comment has nothing to do with your personhood.
I think you don't know what a "personal attack" is. Or a "currency", for that matter.