I feel like B&CEx is a business easier to understand than Nu and better defined -
As a custodian that got elected by shareholders, they sell credits, and distribute the proceeding to shareholders - credits are then used to be pay tx fees

On Nu, custodians receive Nubits that they sell/buy on Markets (that get hacked) and are at the mercy of Bitcoin whose volatility traders hedge against Nubit free stability.
The 1st playing field of Nubits should have been payment processors, exchanges, and gateways (PEGs)
See: https://discuss.nubits.com/t/draft-promoting-nubits-to-internet-payment-processors-exchanges-and-gateways/2037

I am struggling to see how B&CEx is going to bring business to Nu, i.e. convert and transform Nu into a profitable business.