Most banks aren't really concerned about Bitcoin being competition to them. What they are really worried about is money launderers using bitcoin, and routing those funds through their banks. They will be made to pay stiff fines if laundered funds pass through them and they don't detect it,
Good to see that ING isn't worried and has proper processes in place.
Banks could give a toss about laundering.
Sure, on paper they're supposed to be on the lookout, but when banking giants like HSBC launder billions and get a slap on the wrist, the REAL message is "go ahead, but don't get caught". The real point of any bank reporting people is a system of control. If you're a multi-national pushing millions per day through the system, the bank could give a crap. If you're joe blow, woah, hold on there - the bank didn't say you could do what you want with YOUR money, you peasant.