So I think in there is the crux of this, which is that she (and I, and apparently lots of other commentators) don't equate a bit of flirting and a short skirt while slightly inebriated with getting yourself "ass-drunk at a party and leaving for home on foot through a very bad neighborhood" in terms of inherent risk. And if tech conferences really do consistently provide that sort of risk profile, there is something deeply wrong going on.