Quantitative Easing Revisited, page-11

Danhoff

"If QE makes money for the FED... AND... it does not cause inflation.... why did they stop?"

Good question. Simple answer. Have a look at the Mission Statement of the Federal Reserve Board:
http://www.federalreserve.gov/aboutthefed/mission.htm

• conducting the nation's monetary policy by influencing the monetary and credit conditions in the economy in pursuit of maximum employment, stable prices, and moderate long-term interest rates
• supervising and regulating banking institutions to ensure the safety and soundness of the nation's banking and financial system and to protect the credit rights of consumers
• maintaining the stability of the financial system and containing systemic risk that may arise in financial markets
• providing financial services to depository institutions, the U.S. government, and foreign official institutions, including playing a major role in operating the nation's payments system

The Fed doesn't exist to make a profit at the expense of the banks.