"You left out the "trustable" adjective, and that's the killer."
Agreed. If there were a simple 3rd party vetting service that currenlty trusted purveyor's of news used religiously, that in and of itself would allow me to trust said third party validator for other, perhaps non-mainstrem channels, and not trust thos who didn't use the 3rd party validator.
I'm just saying - there's a high demand for trust. One could argue that the currency of the forseable future is indeed "trust".