Why do people hate QE2?

Tyler Cowen:

[T]he libertarian right is having a hard time seeing the Fed as a relative ally over the last three years, which it has been. That admission implies an unappetizing shift in the goal posts for what is possible, and that sounds like a intellectual surrender to a lot of people I know. I think they are in denial. One alternative to acceptance is to view the Fed as sinister, which then leads you to fear anything they do, including QEII, their current major monetary policy initiative."