To be fair, even with the expanded events mods they end up being pretty crap, IMHO.
Unrelated, but I just met a civ a couple turns ago ( @pineappledan 's Inuits, if it matters), and I have a bright red diplo modifier for " capturing or killing their civilians." I haven't even seen anything but one of their Pathfinders, much less captured or killed anything. Local barbarians didn't have any of their units either, at least as far as I saw. They're decently far away, too, with Indonesia right between us. No shared borders to speak of.
I'm currently without internet on my desktop, so unable to post a proper bug report. Can give any additional info that helps, though.
Edit: Also, I'm really sorry to see that we're sticking with the skirmisher doctrine. I was under the impression that we had reached a general consensus that it was pretty crap. I've been playing with Dan's unit tweaks for the past few games, and I have to say it feels much, much better than the current terrain modifiers. I don't see a numbers tweak making much of a difference, but we'll see.
Plundered any trade routes or razed any cities, by any chance? Playing as Morocco perhaps? If not, that sounds like a bug to me.