Boy, that's calling the kettle black!
My whole point is that you seem to bring up the authority card a lot, under this user name and your last one. I don't think this has anything to do with having authority or not. This guy is simply a fraud who has taken everyone -- brokers, carriers, and truck operators all for quite the ride using many different names.
It doesn't matter if it's 'co-brokering', interlining, or just plain trading off the load boards ... it's double brokering and if it's not with full disclosure and consent it's just plain crap. The fact is, a carrier that interlines has the loophole that it doesn't need authority to do so. It's up to the other parties to make sure that the right ones are being held liable for whatever happens during a shipment event.