The media that are currently paraded as trustworthy were all in on things like "babies out of incubators", "weapons of mass destruction", Libya, etc. And everyone who tried to go against them was smeared as conspiracy theorist.
I can not trust the media that was integral in lying about and manufacturing consent for endless wars, when they have not learned from their mistakes and are still beating their drums.
Giving the elites power to decide what is a "proven source of disinformation" sounds like a really bad idea.