The rate of being killed is pretty damn high in your circle? What is s/killed? Or is it just a harassment issue? If it's so high, why keep doing it? I'm struggling to understand the risk/reward, and what the risk actually is compared to what it's perceived to be.

s/foo/bar/ is search & replace foo with bar. So yes, they're saying the rate of harassment is high. Even if we posit that >99% of men aren't harassers, a solo female traveler is going to encounter a lot more than 100 men, so is quite likely to be harassed.