About aggressiveness: It turns out that when women act aggressive, they are often treated differently than men who act the same way. This is a perfect example of where unconscious biases fuck up the system.
This is something actual research has been done on, though I don't have any links handy. :(
I don't really understand what you're implication is. The poster I was responding to used the word aggressive to describe how men are "supposed" to seek raises and otherwise negotiate in the workplace, and said that women often didn't act that way.
You can replace the word aggressive with assertive if you think it describes the style of negotiation better, but that has nothing to do with my point.
This is something actual research has been done on, though I don't have any links handy. :(