I don't like it, either, for the same reason. It's a funny term because the pajama comment made earlier, but it's too easily envisioned by the general public as a very negative thing. I'll never use it.
We should be calling the mainstream media the oldmediahadeen. They're the extremists shilling for the DNC, trashing truth, engaging in forgeries, trying to bring down America. Death to the oldmediahadeen!