I think you are right about the flags not carrying over to the front. I think bordom needs to create the flags. Another thing that would be good is if that after so many of a certain type of flag that the post would get a medal.
ie. )
I feel like users should be able to add or remove flags too. Something like a D fight, but with flags in the queue. :) (do you know of the d fight?) It's surprisingly addictive.