Possible Duplicate:
Let’s make it easier to reply within comments!
As many people know, users will post comments, and refer to other users by name using the "@username" syntax. It would be nice to be able to create links to a user's profile by either of the following ways:
- Pick from a list of matching usernames when an "@" symbol is typed in a comment (similar to Facebook status updates)
- Be able to drag-and-drop a username/gravatar from the page into a comment
Since the StackOverflow sites allow you to change your display name, often times past comments will be left in a "corrupt" state - comments may refer to you by "@oldName", even after you've chnaged your name to "@newName". Allowing the linking of usernames would keep comments up-to-date even after name changes - "@newName" would always be shown.