I remember seeing stories about an Occupy group doing that.

You know, a distributed ledger of defaulted US student debt might actually be a useful use for a blockchain.

(I say this as a NZer whose student debt was held by the govt. and had capped fees etc.)

Yeah, I think it was an episode of The Daily Show where they bought a whole tranche of medical debt and forgave it.

It was an episode of Last Week Tonight a few years ago. They noted that you can not buy individual debt, just large blocks of it. So HBO let them buy a large block of it and they told everyone they wouldn't be collecting.