HackForumsRepDiff This application find users that have not not repped a user back. It makes no actual request to HackForums. Documents: http://vgy.me/hHafjb.png Given: http://vgy.me/gozTWV.png Received: http://vgy.me/IY8GH8.png Difference: http://vgy.me/uYraca.png