Lets users suggest that content may need to be reviewed or re-examined.
Example of a post that has been flagged for review. Also shows the 'last updated' option.
If content hasn't been marked for review, the user sees this button.
When the button is clicked, it changes to a text box with submit and cancel buttons.
When editing a post, if it has been suggested for review, this meta box will appear. The checkbox is automatically checked; the assumption is that you are editing the content to resolve a review suggestion. Also note the radio button that allows you to exclude a post while you are editing, rather than entering them directly into the admin options.