Why would anyone even consider bidding on a second loan for a person who has had ANY level of delinquency (especially to the point of triggering action by the collection agency) at any point during their participation on the Prosper platform? Why is 12 any more magical than 6? IMO, the moment a borrower is subject to collection, they should no longer be allowed to borrow on Prosper. For purposes of participation, borrowers should be treated like we treat defaulted borrowers. Judging by the cure-rates on late loans, I am not sure I see much of a difference.
Also, until Prosper can get their crap together, they should cut off HR borrowers. Once DoFu has demonstrated Prosper's ability to pursue and recover at an acceptable level, then we can re-consider whether or not HR borrowers have a place on Prosper.
Based on how things went the first year on Prosper, allowing loans to fund above 30% is just asking for trouble.