Words aren't offensive, people who make them offensive are. Seriously, a lot of people who are here are adults, and this isn't grade school where when someone calls us a name we start crying and whining. People need to learn to just shrug it off, it's JUST A WORD.
If someone starts adding reprehensible actions to those words, THAT'S when it's bad. But when it's just a prank played on a dev who really has about two people actually coding the game, stop going up in arms. It's not like they're starting a race war, it was just a small oversight, in a DEVELOPERS version of the game.
No, I don't like the word either, it's a rude disgraceful word no matter who says it and in what context. But it's still a word, if you're still offended by such a tiny thing, you need to grow up, because a lot worse things could happen than being called a name, and being offended by every small thing will lead to a life of unhappiness.