Mentions allow users to tag other community members in posts and comments. This alerts tagged community members to the fact that they’ve been mentioned, which encourages the tagged person to respond to the post author, but it also provides a link to the mentioned user’s profile so the post author can reach out on their own to make a connection.
To mention someone, type the @ symbol and then the name of the person you're trying to mention. If you don't see them right away, try typing in their last name instead.
Mentions are a great way to alert a friend to a relevant offer, provide a lead for an asker, or loop people in that would benefit from interacting with a particular post. Mentions are also a great way to thank some directly when you're logging a success.