If it's any consolation, this kind of account activity is sufficient for an individual to be declared a pariah, sent a cheque settling their account, and denied further banking services.
By any bank with a UK banking license.
There is zero profit motive for banks to continue to provide personal banking services beyond the point that AML suspicious activity reports need to be filed (against said person).
It's truly epic when this happens. I wouldn't wish this fate on anyone. But I can assure you that it is most definitely happening (infrequently, and silently). Choices do indeed have consequences.