Why are pop scare prank videos so annoying? I'm talking about those videos you get either shared on Facebook or some I've got in email that seem innocent or curious, inviting you to look closely, and then pop up a scary face and a scream sound. Why would that be so much more upsetting or irritating than Rickrolling?
Well, it starts with the way the videos are presented initially. They deliberately lie to you to draw you in. They can't do so any other way. If they were titled "Get ready for a scary surprise!" rather than "This is really weird, watch closely" then they wouldn't have the same effect. You already feel like a sucker when they get you.
Secondly, the prank instigator is not there to have a good laugh with you at the look on your face when it happens, as would be the case with a live prank. You'd have someone to share the "joke" with, or at least someone to hit. With the video, that's all there is. You get sucked in, a genuine pop scare, then it's over. Nobody says "Oh, man, that was great! You should have seen your face!" The video just stops playing and waits for another sucker. The disconnection of the internet strikes again, and the only motivation you can attribute to a person like that is sheer malice.
Mokalus of Borg
PS - I know Rickrolling has to lie to get you in.
PPS - That one ends with a song, though, not a scream.