History repeating itself
I guess that whoever came up this brilliant idea didn't have history in school, flunked it, or is an idiot. Once upon a time here in the States, banks did issue their own currency. It ended up in disaster for many people with the only saving grace is that the bank usually but not always had the specie reserves in the vault. If the vault got robbed, the currency was worthless. So the BOE wants to do this again? Without something to back it up other than some bits on a disk?