pages_read_user_content
The
pages_read_user_content permission allows your app to read user generated content on the Page, such as posts, comments, and ratings by users or other Pages, and to delete user comments on Page posts. It also allows your app to read posts that the Page is tagged in. The allowed usage for this permission is to read user's and other Page’s content posted on the Page if you need it to help manage the Page. You may also use this permission to request analytics insights to improve your app and for marketing or advertising purposes, through the use of aggregated and de-identified or anonymized information (provided such data cannot be re-identified).