Could be a rock band, but it’s a blog: Toad in the Hole from Faultline points out some bad pruning: ” Tree pruning: Basics and butchery.”
- Do not leave stubs
- Do not cut absolutely flush, either: leave the branch’s growth collar at the base.
- Do not cut off major branches if you can help it. They may not be able to heal.
- Do not encourage poorly attached branches to grow at the ends of stubs. They will fall on someone.
I, too, cringe when I see badly pruned trees.