inverse google bombing

I was thinking last night that the nofollow tag creates the ability for inverse google bombing. This would be where everyone links to a specific site, but they include the rel=nofollow in any link to that site. You'd have a situation where thousands of people were linking to something like mad, but it never shows up in Google or any of the major search engines. Hate Microsoft? Want to link to them, yet not give them a pagerank boost? rel=nofollow.