And this, ladies and gentlemen, is why we have copyright and IP lawyers. :)
Seriously, I have no problem with somebody going up to somebody else and saying "Hey, so-and-so said this-and-that on the chatterbox today." There's a huge difference between that and capturing conversations and posting them verbatim in permanent form.
I think merlyn's pub analogy is quite apt. We need the Chatterbox to balance out the permanency of the nodes. If they're going to be equivalent, what's the point? And again, while legally there isn't going to be any differentiation (they're both posted in public places, even if temporarily), it's a matter of courtesy and decency.