Because it is the general way that most racial questions are asked. Most racial questions are directed at one particular race. They are usually mean, cruel and demeaning and are against the rules and guidelines of the Yahoo Community. I think if you have an honest and sincere question the community would allow it. If it was at all offensive in any way that would and should remove it.
i guess people just want to stir up drama and get a lot of responses, and by bringing up racism, they're bound to get lots of answers, even if they are angry responses, they just want attention.