Nice post, Scott.
Sadly, we live in a time when people make a very good living selling pictures of Tom Cruise walking outside with his young daughter days after a divorce. If selling those "moments" for profit is permissible (both legally and, apparently, under whatever is left in the handbook of journalistic ethics), I have a hard time getting worked up about the proper sourcing of a website comment posted on a public message board. I think Tom has every right to be upset, and I probably would too if it happened to me (happily, no one stands to make any kind of profit quoting me ... or maybe not-so-happily ... got to think about that one).
I do think it would be nice if folks on this site agreed not to broadcast the things said here, whether it is arguments, announcements, or criticisms. If someone wants to do a Google search to dig for controversy, so be it. But it does feel weird to have someone from this site bring comments somewhere else for distribution to a larger audience. Not illegal, maybe not even unethical, bit it just feels kind of dirty.