Is Rush a freeper, does anyone know?
Them As Knows ain't sayin', but my fairly well-informed guess is that no, he isn't personally, and yes, he has at least some if not all of his staff lurking.
I don't know if he posts, but he certainly lurks.
I've seen FR on his 'puter screen more than once in the EIB studio and I've caught references on occasion to something that's been hot on FR about the time he's spieling on it.
Plus, he has referenced "Freepers" more than once on the show.
He probably pays someone to freep for him, too.