if someone links to a youtube video and an ad pops up with no indication I'll be able to skip it in 5 seconds, I immediately close out no matter how long the video is or what it is.
if I look up a video myself of something that I want to see, I'll usually sit through the ad if I have to but skip it if I can.
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I believe there's meaning. No, I believe there's nothing.
http://i.imgur.com/RYunc.png