Moderators add flags sometimes, but almost never on submissions. (It's different with comments.) See "What does [flagged] mean?" in https://news.ycombinator.com

Moderators add flags sometimes, but almost never on submissions. (It's different with comments.) See "What does [flagged] mean?" in https://news.ycombinator.com/newsfaq.html https://news.ycombinator.com/newsfaq.html.