It’s called respect. I was taught you never touch someone else’s climb with out asking permission out of respect for who came before you. It is an unwritten code. I would say out of the all the climbers I talk too and know, 99% of them know and abide by this respect. It does not matter if the climb is 50 or 3000 feet, it would go a long way to make a valid attempt at contacting the “climbers who came before you”.
Once again Rain……respect those who came before you please.