lazyman, what makes your endorsement so valuable? what exactly are you going to say about a borrower other than I was paid 50 bucks?
Go back and read the post. Prosper is saying that endorsements are valuable. They make no claim about the source mattering. That's what has me think it's a flawed system. All endorsements are equal, even one that could have been bought and paid for.
Though if you go back and read the first comment, the Credit Karma CEO found that there's some potential value in even a bought endorsement.
As for what I'd say, I'd actually talk to the person and vet their credentials. I'm not saying that it's a guarantee that they pay everything back, but what endorsement is?