Why Doesn't Julian Assange Just Open a Numbered Swiss Bank Account for His Wikileaks Donations?

I mean, it's really sad that 'the corporations against which Wikileaks is AT WAR' have decided to cut off Assange's SUPPLY LINE i.e. your donations, or at least the ability for Wikileaks to process payments through Visa, Mastercard, Paypal and Bank of Amerika.
But my question still stands, "Why doesn't Julian Assange just open a numbered Swiss bank account for his Wikileaks donations?"
*shrugs*
Seems kinda obvious, as these shadowy institutions have been laundering money for lunatic despots, corrupt administrations and amoral global conglomerates for most of the last century.