Alright, somewhere on the Internet, we have all heard some idiot use a variation of this phrase expecting to scare people (and of course failing). Evidently, I've never had any angsty homicidal teenagers knock at my door lately, so it's not something I really worry about.
However, hear me out: Could someone, hypothetically, with enough time, patience, and skill, actually find out where you live via IP? I highly doubt anyone would trek across the world to come for me, but could they find out my address? I know some places use your IP to find your city, but that's a pretty broad search area.
If some hypothetic person actually had the willpower to find out as much as they can about where I live, how far could they realistically get?