Intelligent design & physics cranks

From an Op-Ed article in today's NYT, "Show Me the Science," by Daniel C. Dennett

Fortunately for physicists, there is no powerful motivation for such a band of mischief-makers to form. They don't have to spend much time persuading people that quantum physics and Einsteinian relativity really have been established beyond all reasonable doubt.

That's easy for Dennett to say, since he's no physicist. But my impression is that plenty of physicists get deluged by cranks and their manuscripts, no?