When governments print a lot of money and buy a lot of debt, they cheapen both, which essentially taxes those who own it, making it easier for debtors and borrowers. When this happens to the point that the holders of money and debt assets realize what is going on, they seek to sell their debt assets and/or borrow money to get into debt they can pay back with cheap money. They also often move their wealth into better storeholds, such as gold and certain types of stocks, or to another country not having these problems.
