It is most likely something else going on with the account. You need to remember the brilliant creation of Max Levchin was actually the fraud detection algorith

It is most likely something else going on with the account. You need to remember the brilliant creation of Max Levchin was actually the fraud detection algorithms. The easy way to think about it is, any "uncommon" or "uncharacteristic" account activity will generate some degree of weight towards flagging or even locking the account. If donations, or even transfers, of size X are uncommon for the account, then the fraud detection algorithms try to limit the risks. This might result in a call from paypal (happened to me), a lock on the account, the account being completely frozen or any of a number of different risk mitigation methods. In short, this one example proves nothing about wikileaks.