GEM-Shihan, Counsellors, et al.,
Not having seen Sifu Mooney's original post, this may be an uninformed response, but what the heck.

When one posts material to a public forum, for public view without a copyright statement attached, isn't there an assumption of relinquishment of ownership of the statements re copyright?
While out of context quotation of said material could result in a false light defamation, so long as the original post is used as posted by the person placing it originally, is there really any copyright claim possible inasmuch as the material was posted to a public forum in the first place, especially when done by the person doing the copyright complaining?
One would think that, when one posts any of their own material to the net, whether to a USEnet forum, this forum or other generally accessable public forums, that such material becomes part of the public domain simply because it was posted in a public forum and control over the dissemination of said material ends the instant that said material is posted? (presuming that the material was not posted with a copyright statement, of course)
This would especially apply to quotations from books and manuals that fall under either a review or those posted to invite comment and criticism and discussion, when posted by the person complaining, would it not?
I am not an attorney, nor do I play one on TV OR the internet, but it would seem to me that, using a reasonable man standard, that if one posts material to the net on a public forum, the claim to copyright protection for that specific material goes right down the drain except as it might be protected as part of a larger work under separate conditions. What the author posts becomes part of the public's legacy - or so it would seem.
I'm asking here, folks, so be gentle.

Respectfully,
Lee Darrow, C.Ht.