High Sierra Topix

I'll join the ranks of haters also. Its just another form of graffiti (ego gratification). Leave no trace please. So far as ducks, I'll leave them where they mark a viable route or the descent chute, but when they are placed indiscriminately in open terrain or, the all too common, adjacent to a trail (?) they get scattered.
When I hiked the John Muir trail in the 70s we didn't pile rocks; every rest stop we'd find three nice ones and taught ourselves to juggle

Even Simba couldn't believe the stacking of rocks below high water line at Loon Lk on his first backpacking trip.
No, I didn't stack them. I think fisherpeople stack them to remember a spot.