I think most of us who has been around Prosper for a while are now somewhat aware of many of the basic dimensions of risk associated with investiing on Prosper.com.
- Prosper is a lender of last resort for many borrowers
- Lack of (and decreased) transparency makes it difficult to identify problems with listings
- Enforcement/collection mechanism is sorely lacking
- Borrowers may be overly optimistic about their ability to service loan or lack basic understanding of their own financial situation
- Level of criminal activity by borrowers on Prosper is difficult to establish
- Fraud guarantee is largely meaningless
Then, we have new levels of risk that have emerged more recently:
- Ownership structure of the Prosper 3.0 loans has changed to the possible/likely detriment of lenders
- Uncertainty related to the long-term operational viability of the Prosper platform

Now, I think we may need to factor in another new level of risk:
- Almost 6 months after Prosper's re-opening, the listing volume has YET to touch the levels of March 2006 (Prosper's first full month of originations - and the all-time historical low)
- Back then, Prosper had many millions of dollars in available operating cash
- Now, according to public filings, Prosper's cash position is such that it is seeking incremental bridge financing at 15%
What does this mean? It is likely that some level of desperation is becoming more prevalent. As demonstrated during the last few days of December 2009, Prosper pushed through an unusually high number of loans during the last days of the month. We know this has happened before, but considering Prosper's cash position, this takes on an even more serious color of risk.
Prosper's incentive is now to originate as many loans as possible - especially as the new batch of lenders is now starting to see their first set of seriously delinquent loans.
Whatever checks and balances were ever in place to review loans prior to funding, lenders would be foolish to assume that Prosper is now closely scrutinizing loan applications to any meaningful degree. Similarly, anecdotal evidence from recently funded borrowers here on Org suggest that pre-funding verification is not happening and Prosper is aggressively moving money through the system and out to borrowers.
Lender beware.