Interesting that HN keeps killing threads on this topic: https://news.ycombinator.com/item?id=6360328 A stubborn refusal to confront the problem is what helps these attitudes fester.
What exactly does it mean to confront the problem? I am not planning on giving a sexist presentation so... problem confronted? Am I suppose to do something to prevent others from giving sexist presentations too? I am not in a position to do that, and very few people are (how many people on HN actually run conferences?).
I don't see any actionable call to arms.