One thing I've noticed is that some helicopter pilots really have a hard time with the "fly neighborly" concept. Oh, they'll espouse the party-line during pre-flight, but fall short when it comes to actually putting it into practice.
I often tell a story about a pilot I checked out recently. He was doing pretty well and seemed pretty knowlegeable, but as we approached a local airport that we use for practice, he dropped down to about 300' agl when we were still a good five miles out. There was no compelling reason for it. A farmhouse passed close by under our chin bubbles, and I wondered aloud if everyone loves the sound of helicopter noise? He gave me a blank stare. Pointing to yet another house gliding by under my feet, I said, "I would rather assume that people 'down there' hate helicopter noise and be wrong, than assume the opposite and be wrong. Let's try to not do this again."
This is not the science of rocketry. It should be Basic Helicopter 101. We *MUST* be cognizant of who we are flying over and adjust our operations to the extent possible. If you are approaching an uncontrolled airport properly from the non-traffic pattern side, there is no need to drop down to treetop level. Helicopters can do very nice, very safe approaches that are steeper than your standard 3 degrees. And in fact, holding a little altitude helps give you better situational awareness of where you're going to shoot your approach to. If you're approaching a runway as a fixed-wing would, then fine, shoot a "normal" approach. But there are good reasons for *not* doing that when the aeropuerto is surrounded by noise-sensitive areas, as Scottsdale evidently is.
It's not enough to simply say, "Screw them! We were here first!" Among the many things we are obligated to do, we must look for ways of minimizing our negative, um, impact on the community and the non-aviators who inhabit it. As much as it might be music to our ears, not everybody down there loves the sound of a clattering helicopter above their roof.