What is flagging?
Using this site
Each article has a “Flag it” option in its information column (left, green). If an article has a broken link, inaccurate information, an orphaned plugin/file, or should be otherwise archived or edited, you can contact the article’s author to inform them, or Flag the article for the Admin’s attention. Describe the reason for the flag in the textarea field and hit the “Flag” button to submit it. When describing the reason, please try to include URLs or provide direction for correcting broken contents from the article.