I think that the venting threads are fine. People have a right to be pissed off and frustrated. They were majorly let down and outright lied to for a long, long time.
I feel for Kevin in some part too, because he obviously felt like he could eventually get things worked out, but at some point he got too deep and was too weak willed to own up to the mess he created and it got worse. I think he had good intentions up until the end, but that doesn't excuse his responsibility to make amends and pay restitution.