They don't spam that much on Myspace, Facebook, or Twitter. But Youtube? Yes.
They don't really think its fun or anything to spam, they're acting like they have power. Like they've effect us in some way by doing this. "Muwahahahahhahhh1h11" "You guys will feel my power"
They're basically just saying it, they may give emotion sometimes but in their heads and in real life its nothing.