Flagging posts is a vital role in the Ask Ubuntu community. Flagging helps identify posts that require moderator attention and possibly moderator intervention.

There are several valid flag reasons and they are as follows: Post needs to be closed (as either a duplicate, off-topic, not constructive, or too localized), post is spam, post is offensive, and finally "other" where you can input a message to the moderators.

To gain this accomplishment and badge you need to find a post which requires moderator attention and flag it appropriately.