So you think that because MS doesn't use it now, they won't ever use the DMCA to squash bug reports?
Here's a link to the Security Focus article on HP:
http://online.securityfocus.com/columnists/100
and they have the right idea, that the law needs to be "patched" so that companies cannot actually go after those who report bugs or vulns.
I have nothing against MS, I make a lot of money due to the fact that their OS is popular and buggy.