I agree as well, except about not climbing where visitors can see you b/c they don't want to. When I have climbed in Zion, I have woken up to throngs taking pictures of us in the portaledge and whatnot. I've had people stop me on the approach and asked to take pictures of a couple of fools so laden with gear that we look like we are ready for WW3. I think in general, people are facinated by climbers. I think its natural to be curious and intrigued by other people's activities in nature. I know that I get a thrill watching kayakers go by, even if they do scare the fish.