After reading [this question](https://skeptics.stackexchange.com/questions/1456/is-it-true-that-black-people-on-average-can-jump-higher-than-white-people/4604#4604), I was astonished that no one really comment about the unscientific nature of the question, as well as the insidious door it opens.

How can we accept such a title ? Black, white ? To answer a question we need proper input, scientific and accurate. In which extend such a question can be answered ?

The term black put in the same basket such differents persons. Who is considered to be black ? What is the amount of black in your skin to determine you as being black ?

Left aside this point, what about the origins of people considered to be black ?
There are so many origins. How could you put indifferently together such differents cultures as jamaican, bresilian, or ethiopian ? Is this scientifically acceptable ?

Another point. If we allow this kind of colour-oriented question, why shouldn't we accept questions like "Are black people more stupid than white people ?" ? 
Why should we be ok with positives racial stereotypes and not ok with negatives ones ?

I think we are at a crossroad here.