"74,708 random video IDs"
Pretty lame selection when there's more than 3 billion videos on YouTube.
Hey, you know how random imgur generators fail to find an image really often? Imgur URLs are 7 random numbers and letters. Those generators just make a random URL and hope it exists.
YouTube URLs are 10 random numbers and letters (and _). Have fun using the same method for finding random videos - then notice how unlikely it is to actually find one.