What's the point of that? Using cryptocurrencies frees you from the possibility of your funds being frozen or seized or even detected/associated with you.
GBPCoin would be no different from using GBP on a bank account.
GBPCoin would be no different from using GBP on a bank account.
Eventually, somewhere, you have to spend money or take delivery of goods or services rendered. I don't think you can buttress that.