Some news for all you page admin's out there.
Facebook page admins have lost the ability to mark comments on their pages as spam, as they now only have options to remove is entirely and deal with the user from there.
Now, when admins remove a comment, they are given three options: Undo the removal, report the comment as abuse, or ban the user who posted the comment.
Continued at: http://www.webpronews.com/facebook-p...s-spam-2012-08
Hopefully this will help you out better on your page.