If the loan was made within 90 days of the filing of the bankruptcy, there is a legal presumption of fraud under the bankruptcy code and the simple act of filing an objection to discharge or adversary proceeding will make the debt non-dischargeable. Of course, it may not be collectable.
I've seen a few of my notes file for Chapter 7 six or so months out, but nothing this fast. If no effort is made by Prosper to challenge discharge and aggressively try to collect in this case, lender confidence should suffer.