No one seems to be using them, particularly:
** 91.119 Minimum safe altitudes: General
(b) Over congested areas. Over any congested area of a city, town, or settlement, or over any open air assembly of persons, an altitude of 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet of the aircraft.**
I live about 3 miles N of KSMQ in a “congested area” and small planes and helicopters consistently fly over lower than 500’ AGL. I’ve filed several complaints with the FAA and the airport but without tail numbers, nothing can be done. Most of the time can’t see the tail numbers as the planes are directly overhead, and if I can see them the plane goes by too fast to read them. My main complaint is the noise, and also the safety of the neighborhood.
So, pilots, what is your excuse for flying lower than flight rules allow?