Plugin adds report broken post option to each post and page. Report option is rendered on all posts and pages by default, but you can add categories, posts or pages to exclude report from. You can also add report link in different parts of blog. All this is controled through settings panel.
Plugin uses 2 templates for integration and 1 template for email. Once the post is reported broken, email is sent to address provided in the plugin settings. Plugin adds meta element *gd_broken_report* to the reported post. Once you fix the problem, delete that custom meta element.