I take pictures of aircraft whilst it's "prohibited" to do so, as far as I'm aware it's never caused a problem before?
- I don't see what harm it's causing, yes there is the issue of the camera becoming launched through the cabin in an emergency - But i'd be more worried about the overheads opening and pax getting hit with heavy bags than a camera.
There is one simple way to avoid cabin crew detection, provided your not seated near them
is wait for the "CC seats for landing" command (or other, depending the airlines proceedure for that, ie double chime).
Recording/taking pictures in my eyes poses little, if any, threat to the safety of the aircraft. The devices obviousaly cannot interfere with the navigation equipment onboard because we're aloud to use them above FL100!! Unless it some how magically messes with the ILS, I have no idea how it poses a threat in that way.
Yes, I proberbly shouldn't do it, because it is after all prohibited..