>>811267Not so concerned about this, since you can usually start to sense you're in a bad area well enough before you're in the thick of it.
With the state of our property/trespassing laws in the US, I'm more concerned about someone wandering onto private property without realizing it, and end up fined or worse.
It's really easy to miss a little posted sign that's likely to be above the head of most users, likely rusted over, and nailed to a tree. (As is the custom here.)
I'm not going to miss someone shouting AYYYYYYY WHITEY! or burnt out rowhomes.