Bully for you, Bank of America. Bank of America's starting charging monthly fees for debit card usage to some customers. This is being taken as an "I told you so" by opponents of the Durbin Amendment, who argued that it would only result in higher costs for consumers. Actually, the BoA move is exactly what we might expect: consumers are having to pay for their rewards. That's how it should be. They might be paying too much, but that's another matter. So what does Bank of America's move tell us?