But they’re usually a bad deal for the unfortunate creditor in a bankruptcy unless you absolutely positively need liquid cash immediately. Or have some non-public info that suggests the claims buyer is way overvaluing things.
General advice is to let your claim ride.
FTX’s bankruptcy filings are full of entries about transfers of creditor claims by some random hedge funds.
The payout will probably come in the next 10 years or so.
The problem with letting a cryptocurrency bankruptcy ride is that there isn’t much case law, so before you get paid loads of legal questions have to be settled which can take decades.
If you have an FTX claim then sell it, take the cash and move on.
Of course there will always be situations where someone could have invested reduced immediate proceeds more favourably, but it’s easy to say that in hindsight.