[msandford]

The distinction absolutely does matter! It wouldn't matter if ONLY WOMEN dressed differently than stereotypical techies, or ONLY WOMEN had higher-than-average pitch voices, and ONLY WOMEN were young. But they're not! Both women and men might display those attributes. In order to treat people fairly, you have to treat people fairly. It wouldn't be a triumph of justice to reset men's prejudices towards women but not also towards other men.

In other words, discriminating against someone for a particular characteristic like the ones she mentioned is terrible and it shouldn't happen, regardless of the sex of the person being discriminated against.