Its relevant to Microsoft''s web-based interface users only, and it used to
dentifying helpful posts.
Check on the buttom of the screen, there is a line said "Why should I rate a
post?" press it, and all the details will be there.
Go under Tools | Accounts and add a new News account.
Do NOT use your real e-mail address: you'll be inundated with Spam if you
do. Munge it if you like. Set the server name to msnews.microsoft.com. It
doesn't require logging in.