I can understand why you'd be cynical. Perhaps the "up vote" function is over-the-top. In my mind, though, it isn't that different from the Tweet and Like buttons at the bottom. I just want to spread the word. (The more people that read it, the better the discussion.)

As for the "0% content" part, I'd ask you to read a couple of other posts before outright dismissing it. Perhaps from there you'll get a feel for whether it's link-bait or something I believe to be important--and worthy of broader attention.