I think it would be a cool little feature if you could tag your nb friends in some of your threads the tag would send a notificationto them and makes them show up like in the bottom of the original post
Pros:share credit
Have debates
Let your friends know
Cons:spam
Flaming
Advertising
Ways to fix cons: limit the number of people you can tag in your post
A couple other benefits would be calling people out in duels in the ro and stating winners in contests