@VestigialLung @Dtl Given the location of the repeater box, that's probably a cable TV/internet line rather than a power line (those are typically higher up).
Not going to electrocute someone, but has potential to seriously annoy your local telco. And if they keep it up, they might get less lucky with their choice of wire next time.
@azonenberg @Dtl not to mention, I guarantee that wire isn’t intended to be load bearing.