:And (I started a paragraph with and!) the whole point of English is to be able to communicate with one another not to make linguists look clever while the rest of us stand around staring blankly. Someone once told me a psychologist is someone who says what everyone knows in words nobody understands. You could swap psychologist for linguist there and still be mostly right, I guarantee ebonics has a higher penetration rate around here than any style manual you care to come up with, ebonics users never tried to dictate to everyone how to use the language though they simply employed English the way they wanted to and others learned by imitation.