Middle Sweden, actually. Got pretty good relations with the the Norwegian mountain trolls, though. Not much visiting either way, for obvious reasons, but there's some correspondence and of course the younglings get these traveling ideas sometimes. I think it's to do with the humans and their romanticizing it.
Now that you mention it, there's this family quite a ways from here (sadly not far enough) that seem to behave in that primitive, stupid way. Shitty mountain, gaudy decorations, can't tell real gold from fool's gold. Sound familiar?
I don't get why anybody would want to eat humans, anyway. It's not even practical, with so little meat for the effort. So I get a choice between finding, killing and eating a scrawny, but thinking being, ruining our relationship with the people in the area, and just, you know, butchering one of our fat cattle and having a feast. Killing humans is both tasteless and dumb, the way I see it.