I'd laugh at them, shrug my shoulders and move on. Maybe poke fun at them publicly or something as a bonus.
Well, Bunnie's blog indicates she is taking a financial hit - that would change things
Sure, and I'm not blaming her for fighting back.
Dale is a douche, and by all means fight him, but she should be careful that she doesn't let this whole things consume her.
As I said, the best way forward for her is to point to her work and to keep on doing more stuff that proves people wrong. There basically is no other way to progress forward.
Looking at her twitter feed for example, it's nothing but being consumed by this, and I think that's unfortunate. Actually even before this incident her twitter feed was mostly about similar stuff and her struggles.
For sure, talk up about this stuff and try and change things, but be careful not to let it define you.
The fact is she has, by her own choice, taken on a persona, a look, and a brand that is on the edges of societal norm (and I think that's great BTW), and the fact is that will always hinder her in some areas. Just as would happen to anyone else who is "on the edge" of those societal norms, whatever that may be.
This is not your usual "female in tech" issue (although I'm lead to believe that's especially difficult in China).