Youtube: it's a good idea. (that should be the slogan)
It was pretty cool to share videos with effort (smosh, nigahiga, tutorials,video game ownages/reviews), but that has been DESTROYED due to videos filmed at a computer, rick-rolls, attention whores who do the dumbest shit to try to get views, and people who flood views with spam comments (although bob is cool)
What is even worse is that youtube is removing any video with copyright. That's just dumb.
Take off the effortless videos, rick rolls, and stolen stuff (such as clips from Family Guy or a video from Newgrounds), and then you have a pretty damn good website.