Racist words do not only apply to blacks. Walk through east LA slurring Mexicans if you don't believe me. That said, there is clearly a double standard. Words like "redneck" and "white trash" are acceptable, but listing racial slurs for black people in a post would likely get me suspended from the site.

Personally, I think the best course of action to this hypocrisy is to not use any racial slurs, including the socially acceptable ones for white people. If enough people follow this course of action the hypocrisy will (hopefully) go away and people will treat other ethnic groups with a greater degree of dignity.