I'm guessing it got voted down because it's a pretty tenuous link. I read the title as pronounced like "dark", and probably most other people did too, since an

I'm guessing it got voted down because it's a pretty tenuous link. I read the title as pronounced like "dark", and probably most other people did too, since an "e" is usually silent if placed at the end of the word after a consonant. I don't think most people would make the connection to the slur, and that's if they even know the slur exists, since it's pretty antiquated.