First, please note that the 'nifty little trick' was me quoting the other person, not my own coinage.
Certainly I've seen many fake UFO videos, so just seeing a clip on YouTube may not be instantly convincing, but there are experts who can judge whether video has been manipulated, and I would rely on their expertise. As an example, there's this video of an angel/superhuman/alien saving someone from a car accident.
Is this a miracle? At first, some people feel really certain -
"This is an Angel, not a man." But then they issue an update: "My apologies to all, including myself, who fell for this hoax." But if you hunt around ... it's easy to find people who are still real believers in this.
So Christians can certainly see through hoaxes, too. But where are the super-convincing ones? Where's your best stuff?