Never Try to Put Shoes Up There, or Pull Them Down
Whatever the backstory, overhead lines deserve distance and respect. The source warns against throwing shoes or anything else onto power lines. A prank is not worth creating a dangerous situation for you or the people who maintain the equipment.

Do not climb a pole, use a ladder, or poke at hanging shoes with a long object. Do not assume a line is harmless because it looks covered or because the shoes have been there a long time.
Leave decisions about removal to the utility or the responsible local service. You do not need to identify the exact kind of cable before choosing the safer option: stay clear and ask the professionals who manage it.
A Better Ending for Old Sneakers
If this mystery leaves you thinking about your own worn footwear, keep both feet on the ground. Shoes that are clean and still usable may be suitable for donation, depending on the organization’s acceptance rules.
For pairs that are too damaged, check local disposal or footwear collection options. Whatever route fits their condition, an overhead wire should not be part of the plan. Your old shoes can retire without becoming somebody else’s removal job.

And if you take a photo, keep it factual. A caption about a neighborhood mystery is more honest than claiming you have spotted a hidden warning. The photo already has enough personality without an invented explanation attached.
The Best Answer Is an Honest One
If a friend shares a confident explanation, try asking where that information came from. A direct account from the owner is different from an anonymous comment beneath a photo. You can be friendly about it: asking for context is not the same as accusing someone of being wrong.
So what do shoes on a power line mean? They may have a personal story, a prank behind them, or an explanation you will never learn. The visible object alone does not settle the question.
Enjoy the odd little sight, be careful with rumors, and leave the wires alone. Sometimes the smartest answer to a street mystery is simply, “Interesting, but I do not know.”
Thanks for looking up and wondering with us! This post is for entertainment and general information, not professional advice. Keep your curiosity switched on and your shoes safely on the ground.