Could this all be part of some grander scheme to "clean up" Folio and prevent the sale of highly defunct and negative YTM notes?
I don't know. The only thing we can know with certainty is that they will screw up whatever they do try.
If negative YTM notes are to remain fair game, then I really am clueless about what they might try next. If I was a betting man (and I am) I would bet that their grander scheme is to change things in such a way that it is impossible for anyone to do anything stupid. I am not sure how one would accomplish that. I would not like to see them try.
Prosper is the ultimate in crappy trading experiences. They do not allow you to sell a note for less than a 15% discount (or something like that; I'm not sure of the formula). Keep in mind they do not allow the selling of notes in late status. But they also do not allow bidders to bid into negative YTM territory. So as notes mature the price goes into a "coffin corner", to borrow an aviation term. And eventually beyond, where it is actually impossible to bid on a note that was just posted for auction.
Once "They" start telling you how much you
have to ask for your notes, and how much you
cannot ask, that might as well be the end of the whole works. When Bernanke puts the brakes on, these notes aren't going to sell for nearly as much and any artificial floor LC puts in place is going to royally put the hurt on people.
LendingClub, let the market work and stay out of it.