So it's ok to copy blog posts because a server is overloaded but not ok to copy a 5 line article from MSN half of those five lines were copied by MSN from wired, two more were from an interview elsewhere (http://www.therealnews.com/t2/index.php?option=com_content&#... warning, also auto plays some ad, sorry) and whose sole original contribution seems to be to deliver some auto-play ad?

That's inconsistent.

The wired article is here: http://www.wired.com/magazine/2010/12/ff_ai_flashtrading/

I really wonder which one of the two remaining lines you think the DMCA infringement notices will be about.