Gee, I'd be quaking in my boots right now.
Prosper's lawyer threat to prosperreport.com was effective. Prosper's defense of the class action appears equally effective. Let's see what else they try.
In terms of defamation, truth is a defense. I'd be more than happy to talk to any reporter, and provide them with lots of source materials. I'd start with the 2007 changes to the terms of service, initially implemented with no notice to anyone, and have lots more to discuss from there.