Its a funny sort of thing, though. This, and your discussion of "nigger" which followed but which I am not quoting to save space, is one of those things whereby there seems to be rather a double-standard as far as who can use the words and who can't. For example, I am white. My great grandparents came from Europe (Poland and parts of the former Soviet Union). I have no "black" in my heritage at all. If I were to even say the word "nigger" in the context of any conversation, I'd be instantly declared a racist person when nothing could be further from the truth. Contrast this to my observations of many blacks talking among themselves and the use of such a word seems to fly off the tip of their tongue at rapid pace when talking to each other. (Perhaps this is something of the younger generation.)
With regard specifically to finding suitable people to "play with", its probably safer to avoid using words which could potentially be inflammatory, both in writing and in speech, because you never know who you might offend.