dude needs his money, he can't wait for "indefinite period of time", nobody can. he waited for 3 days and then started to sell the account.

your argument is invalid, that lendee could have came straight and informed the lender that he was never going to pay the loan, the lendee could have passed away, there are tons of things that could have happened and the lender would have no way out but to sell the account , that's why it's called a "collateral" - something you pre-plan to sell to repay yourself.