LOL I find it hilarious that some are so hyper to attack the "enemy". Yes, excel, fair use is the standard and correct. Yes, your obvious attack on one poster is legally correct. Yes, the same individuals that attack and insult for copy/paste are equally insulting for personal thought and DEMAND sourcing.
From observation it appears that a more generous copy with sourcing is generally being allowed in some context, just as forum in particular. While at the same time real journalists are tracked with seriousness. If CK, as a journalist goes beyond fair use or does not credit, someone will be talking to his publisher very quickly. It seems a certainty that AP and many large corporate type publishers have web crawlers out constantly looking. They know that individuals repost too much and pretty much look the other way... for now.
A few years back MT was more conscious of the postings because there was a push to stop the practice and collect fees from forum providers. Now, it seems that it is more allowable.
I think the reason is partly that a forum is a bit different in that talkers need to be on the same page for discussions, and are not as skilled as journalists. They quote more because it is how they can communicate. Is that stealing, sure. However, as long as the source is credited it seems allowable by most. That said, I think quoting ALL is not usually correct in most cases, however, more used that what a journalist could call "fair use" is generally acceptable to the copyright owners. I do not know this as fact, but of one goes to most any non journalist blog or forum, the same type of overuse of quotes is typical.
While absolutely technically correct, excel's intent seems to be aimed at picking on one particular poster. whatever....