macky42 - you're absolutely right to remind us that a proportion of complaints are valid. It does not help our own cause to assume that every complainant is an unreasonable NIMBY and therefore to ignore the issue.
During one of the many changes to our local circuit pattern to try to avoid a noise-sensitive complainant, the circuit went over a local village. I happened to be sitting outside in a pub garden on the day of the change, and the noise of aircraft on the climbout was dreadful. The circuit has been changed a least twice again since then.
As it happens, we live under base leg for the usual runway at our local field, and don't really have a problem (apart from with some twins). But then the aircraft are on reduced power, and their noise is often drowned out by road noise anyway. So while it would be unreasonable for someone in our position to complain, I accept that some others are perfectly justified.