I thought about it some more, and I think
a) I assume that he is non English speaking, so he might just think it is funny, offensive, but funny and I doubt very much he meant anything malicious. He was probably trying to be funny or \"smart\" and missed the mark. When English is not your first language, sometimes, you can get yourself in trouble.
b) I doubt very much that he is black himself, and when black people use the \"N\" word with each other, it normally ends with an \"a\" not \"er\". There has never been a time that the later form is used in an endearing way.
I am sure a lot of you got offended by it. I am truely sorry that I let it slip by. So I will be a lot more careful when I authorize from now on. If you guys do see something like this again, just pm me and I will take care of it. This site is for people to come and relax and enjoy themselves, no point getting anyone upset.