Mr Ouch RULES!!.
It wouldn't take an idiot to work out from that sign, that something not-too-cool is going to happen to you, should you want to climb a power pole or have a dance on the top of an 11kV transformer.
I really can't see the logic in attaching warning signs to every single pole
Power poles, or VLSS (Vertical Line Support Structure, as it was once called in a local Lines document) all pretty much look the same to most people.
Unless the poles are a very large distance apart or a person is incredibly stupid, people should be able to put 2 and 2 together and say "I shouldn't climb this thing".
I'd say that this is a form of a disclaimer, Paul.
If this is what it's like now, imagine what we'll be seeing in 10-15 years time, fences around poles?, or even people guarding them to make sure no-one climbs them!.
Or we could save all the problems and just wrap everyone up in Cotton Wool, so that they won't get hurt anywhere.