I must say I don't understand the hysteria about them on the second thread. But anyway I'll go to thread you linked to discuss it further.
I agree, the hysteria is a bit excessive (I don't think drones are inherently evil
), but on the other hand, it would be impossibly to police the use of drone sufficiently to allow people to use them with disturbing other visitors and animals (imagine a dozen drones fighting for position above the lion you are trying to photograph!) and for that reason, I support a ban on them in national parks.
To me, it's like bicycles in camps. Arguably, one child quietly riding his bicycle to the camp shop would not be an issue at all. One drone, hovering well above and isolated sighting, and being landed in such a way that the operator need not get out of the vehicle to retrieve it (eg. on the back of a bakkie) would not be an issue.
But just like groups of children racing through the camp, with the screaming and shouting that inevitably goes with that, is an issue, so a dozens of drones being flown all over the place, approaching and disturbing animals, crashing in the bushes, being landed next to the road with people getting out to retrieve them, etc, etc, would be an issue.
Unfortunately both scenarios in the last paragraph in inevitable, which is why both bicycles and drones need to be banned