The article on bride kidnapping contained no hunter-gatherers, as far I could see.

It's an undisputed example of violent tactics working for reproduction, and a description of how the culture of many societies either endorsed or did not frown on what we would see as rape.

I do not think it wise to attempt to extrapolate information about the EEA from contemporary (or even merely ancient) societies whose material conditions do not resemble the conditions of bands in the EEA. (Hell, I don't even know if we can extrapolate information from modern bands. All of this is an incredible epistemic mess.)

Genghis Khan didn't get to be the ancestor of 8 percent of people in east asia by being nice. (http://en.wikipedia.org/wiki/Descent_from_Genghis_Khan)

I do not dispute the truth of this fact. However, the ruler of the largest contiguous land empire in history is not the sort of fellow we wish to be looking at in order to determine whether or not rape was adaptive in the EEA. If you were interested in answering such a question, I guess you would want to look at some folks like the Hadza and observe how reproductively successful fellows like Scumbag Sengani, a hypothetical rapist, end up being.