Pointer to mark pages that should be deleted.
Pages containing this special badge can be found by clinking the "DeleteThisPage" header at the top of this page.
Only users with special privileges can delete pages. Users with normal privileges can indicate that a page should be deleted by replacing the content of a page with "DeleteThisPage" plus, perhaps, a small note explaining the reason the page should be deleted. Eventually a user with delete privileges will notice and either delete the page or remove the marker.
See MoinMoinExtensions/PageReaper for more details.