"I loan you a billion dollars now to buy assets, then inflate money so billion dollars is worth half a billion dollars, then demand my billion dollars back. This isn't a gift wink wink."
IMHO QE in the US went too far, but it was absolutely a necessary programme that stabilised the US economy at critical moments. The increased reserve requirements on banks, while dragging on bank profits since, were prudent and seem to be working well, especially compared to Europe.