If you introduce yourself as a model (of any gender), and then tell someone that you don't recognize the Bottlerocket logo, you will identify with a different demographic. It's important to note that the guy was not dismissive, as in "You're a woman, therefore you wouldn't understand this." It was a recognition that practically nobody knows who John Gruber is.
You know - there is another very good reason why you don't want to be a dick to people. Because interestingly enough - people who are into power games and ego just won't respect you, and after they've had their fun making you feel small, they'll likely avoid and ignore you.
If you're consistent enough in not being a dick, eventually those that remain around you will also not be dicks and your life overall will be much more pleasant.
The dicks deserve one another - and more often than not, that's exactly what they will receive.
"Ed note: Dalrymple has a different account. He said that his laugh was in relation to another comment—about hockey—and he didn’t walk out first. His comments regarding Android at WWDC had nothing to do with Blue being female."
Not saying one is right and the other is wrong, just pointing out that there were two different accounts of the exchange.
Also, if someone said that to me I wouldn't want to attend the event either, regardless of my gender. This is not excluding women from tech, this is excluding nice people. Either way it needs to change, but it seems unnecessary to bring gender into this (assuming, of course, that he would have made the same comment to someone of a different gender).