Quote: "Property managers hate it when people climb their trees and prune. It's best not to take out deadwood on a tree that you will probably climb only once." Moss
It is funny but some people thinks that any cut done on the tree is damaging to it even removing dead branches that are just causing extra load of weight on the tree. A neighbor close to my house got all bent-out-of-shape when I was cutting some dead branches (Twigs) from a tree on his neighbor's yard. He claimed that he did not wanted to see a "naked tree" from his window. I explained that the extra dead load was attracting parasitic growth (mistletoe) that was further decaying the tree and eventually will kill them.
He has a tree right next to his house that has a large broken branch on the top and I told him that it was a good idea to remove it to prevent from falling on top of his roof. The branch is still there and will probably fall during the next windstorm. He does not know that the insurance polices do not (fully)cover that kind of "wind" damage! but at the same time they do not hesitate to hire a "treehacker" to butcher their trees.
Many urban area trees benefit from a properly done removal of deadwood!