I don't see how anyone could be offended by nigger. It is just a word. What should be banned is if someone says "I hate niggers and they should die".
You cant keep everyone from getting offended in some sort of way so don't even try. Nigger is just as offensive as the word fat. If someone is fat and they get called fat, they're offended. Do we ban the word fat as well?? ugly??
And as regards to people saying there's kids playing this game so we shouldn't say it, explain the high amounts of swearing. It's the internet.