There is nothing illegal in this, if that's what you are suggesting. There are different reasons why somebody might decide to sell debt at a discount. One reas

There is nothing illegal in this, if that's what you are suggesting. There are different reasons why somebody might decide to sell debt at a discount. One reason, for example, is that bankruptcy proceedings, especially international ones are super messy and expensive. If you are not dealing with these things on a regular basis, it might be better to book a small loss now and get and immediate cash flow instead of waiting for decades.