Wait...are you trying to say there's bad information posted on some websites on the internet?!Well there certainly seemed to be a lot of misunderstanding about it when I first got involved in the hobby years ago…
Can you fly higher than 400ft?
Most drones should not fly more than the maximum altitude of 400 feet, which applies to recreational and commercial drone pilots.
According to official aeronautical regulations designed for drone flight – a drone's altitude cannot exceed 400 feet from the ground unless it is "flown within a 400-foot perimeter of an object and does not stay airborne than 400 feet over the structure's immediate topmost limit."
And this from another website…
“Remember here that 400 feet above the ground is what matters here and not the 400 feet that you can see in the drone’s altimeter. So, if you started 100 feet off the ground when your drone took off because you were on top of a building, the drone will still start at zero feet because its altimeter starts recording at the point of takeoff and not from how high it is. “
So it appears that going back some years this “simply” rule was misinterpreted by others.
Holy crap! We need to let someone know about this.