What does it MEAN?
There has to be an explanation for this. I used to see it ALL THE TIME in my old city...just shoes, sneakers, etc (shoes with laces) strung up over power lines. It seemed that some neighborhoods had more instances of this than others, and it was always the sketchy neighborhoods.
I didn't see much of it when I moved here, but then I had to take a detour through a different part of town earlier today and I noticed a pair hanging out up there, and it made me think of it again.
I have also noticed this phenomena when I've travelled to other places.
I find it very hard to believe that people will just throw their shoes on a power line for shits and giggles, so it must have some sort of hidden meaning. Is it a drug thing?
Googling gives me nothing.