Prosper could have issued the Notes as senior secured obligations of the company, but it didn't.
That seems like a good question. The notes themselves are structured in such a way as that cashflows
are dependent on borrowers making payments on loans, so, they are in effect pass-through instruments,
and not what one might traditionally call an "obligation" (but they're not what one might traditionally call
"securities", either, so, perhaps you see the rub, which ties back into all the above regulatory confusion).
If you give the borrower-dependent notes seniority, you open the door to claims, against the companies,
which would essentially make it impossible for the companies to secure any type of operational financing,
since the event of failure as a going concern would mean that holders of senior secured notes ("lenders")
would, or, at least, could attempt to, swoop in and claim that their notes are longer member-dependent,
and that their claims should not only rank as senior, but should have all the "traditional" seniority benefit.
On the other hand, if you leave them as general obligations you can finance the operation of a company,
but you leave "lenders" (holders of member-dependent notes) open to, in the event of liquidation, similar
types of claims of seniority, against the notes, from the people who are financing a company's operation.
So, I don't know, but I'm thinking that they probably chose the latter option, because it means business.
It's an interesting (for me, anyway) topic...
-t