Also you cannot be sure if there is an actual trade of accounts going behind a loan deal but it is still a way. Block any chance of doing something that is frowned upon.
And also I agree to the shasan's point above.
Exactly. If I wanted to purchase an account, all I would need to do is have the seller create a "loan request
for the price we agreed to pay beforehand, and have them offer the account as collateral. Just make the repayment date a month or two in the future and no one will remember besides the "lender", who conveniently forgets to leave any negative trust for the default.