So your confidence in the US Dollar and US Dollar denominated assets will likely diminish, will it?
How will your confidence be running when every member of the IMF does exactly the same thing?
For example, the UK proposal for the IMF to increase each the number of each member nation's SDRs?
For clarification, "money printing" aka "quantitative easing" is currency debasement not "new debts".
They can buy U.S. Treasuries and agency bonds (Fannie and Freddie) through crediting the seller with cash and adding those securities to the Fed's ever-expanding balance sheet. Such purchases can have a dampening effect on interest rates (especially mortgages), but long-term effects are illusory as these new debts will likely diminish investor confidence in the value of the U.S. dollar and dollar-denominated assets.