A quadcopter is a drone that has 4 rotors. You have drones with 3 rotors, 6 rotors, 8 rotors, and even some crazy stuff with dozens of rotors... So, I'm using the general term here and using what people know the most, because ultimately that's what will make people recognize it. I want to remove the stigma from all drones. I could be selfish and just talk about FPV racing quads, because that's mainly the kind of drones that I'm interested, but I want to reach further and so I did a more generic article to reach a more generic audience.
RE: Are drones good or bad?