Maybe someone set your gear at the bottom of the climb because they wanted to climb that route and didnt trust your "older" gear, then a flatlands park ranger picked it up thinking it was trash (ok that was dumb, but really). Is sorta how people leave webbing and when it looks old people cut it off. I think its fine to leave gear but when other people are wanting to climb that same route... Is it ethical to park your car on the sidewalk and expect it not to get towed?