Vertical rock wall climber here. When I was younger anyways I could easy do 6-8 pitches in one day now I'm an old man. I just looked up this "ladder" and my comment is to traverse up or down it a person should have body harness on correctly fitted, one primary safety rope with brake and secondary safety in case 1st one goes FUBAR. In that this stupid fuck had neither = no sympathy from me. None. That's called "free climbing" and if that's your gig go right ahead and one day you will learn the consequences of sudden gravity = a few seconds of free fall all determined on starting height of fall then splat. Then others have to come pick up your fool ass and get you down the mountain.