Has anyone any idea what that means to the average joe? How to protect one's purchasing power? If the government can give you free money (1200$ checks), it also has the power to take everything away from you, right?
The $1200 money isn't free, it is borrowed from future taxpayers. The money the Fed prints doesn't go to Joe Average. It goes to investors who are selling the Fed junk bonds. (They then turn around, and buy stocks with those dollars, which is why the market is soaring.)
That is debatable. They say this but at some point you have to wonder, will they have the capacity to take it off the balance sheet without massive inflation? Historically, there are two ways governments went out of huge debt: default or massive inflations. I doubt the USG will ever let itself default so inflation is more likely. One advantage that the US has is that it has the world reserve currency.