That's why I like it when I see locations in people's posts. It amplifies my doltometer. Still, this moves my opinion of the user and his/her values, not those of the content, so in the end, it does little above being a nuisance.
Finally, we try to cure the symptom because the cure for the cause is part jail and part execution and that sort of smells of failed management. Not that I'd cry to see some people not come back, but final decisions need a lot more effort. Plus, there's the people I hate more than the trollers, the raiders.
Oh dear, you got me started again.