Microsoft SPAM Unsubscribe Requires MS Passport

So I keep getting emails from Microsoft and today I decided to unsubscribe. When I click the unsubscribe link, I am directed to a Microsoft Passport sign in page. I then surfed around the site and came across this page: http://www.microsoft.com/info/unsubscribe.mspx Which in any of the three options, requires me to sign into my Microsoft […]