This is a pretty good idea mainly for this reason:
"It helps make it possible for people to raise an objection when black people use the N-word. I know teachers and coaches - both black and white - have struggled with this dilemma for years. Now you can object strongly, and you’re backed by the NAACP."
Full article from Jason Whitlock here:
http://www.kansascity.com/sports/story/183538.html