This Feature will allow you to mention a fellow user in your post by placing a '@' symbol in front of there properly spelled and case sensitive user name.
I'll tag my self, @
Mr. X <--- See?
This will tag your post with a link back to there profile as well as notify them in there notifications area that they have been mentioned. You will also see a new tab in every ones profile called "Mentions". This will allow your self and others to see where you have been mentioned and who you mentioned.
This is a great way to get some ones attention to a thread with out a cumbersome pm.
Hopefully you guys enjoy!
Mr. X