Yeah, good to see some bitcoin guy completely trolling those Central Banks, perhaps they are just sending the message to whatever means and hopefully these bankers are not going to take it very seriously though as if there is a war between us vs them.
And I commend the people behind, yeah they got balls to do it and hopefully they won't be caught and who knows, they could be charged by anything the authorities can think of.
Legally this action is not advisable because they don't have permission to display the bitcoin logo in such a sensitive place considering the bank's stance on Bitcoin. Nevertheless, it is a good means of advertising Bitcoin and the world needs to get the message that fiat is not the only currency. Bitcoin is a superior money that outshines fiat in all ramifications. Although this action is not lawful, I still give kudos to these bitcoiners that planned and executed this publicity. We need more of these actions to spread the message of bitcoin so that people can be liberated from the influence of central banks.