[Erik816]

Drone pretty clearly implies to me "a craft piloted remotely by a human." A UFO/UAP is an aerial phenomenon we can't currently identify. It could be a human piloted craft, it could be something else yet to be determined.

[D13Fd]

"Drone" also encompasses autonomous craft. So I really don't see the distinction here.

Even if you think it was aliens remotely piloting the craft, it's still a drone.

[yencabulator]

What a "drone" is not is e.g. ball lightning, which then again can count as a UFO.

[gentle]

It's a "drone" (mostly because the cops said it looked like a drone) until someone gives some sort of proof that it isn't.

[exporectomy]

People seeing UFOs are notorious for imposing their prejudices onto what they think they see. If they don't give an objective description of their observation but rather a conclusion like "drone" or "6 feet" (how did they estimate size without knowing speed or distance?), then it's not worth much.