I figured it out. I found the science. -laughs- The reason behind why there's a demand for those sites.

People like getting riled up!! Adrenaline feels good. Addiction to passion. There are the oddballs who actually like it, but I betcha the majority of their viewers hate what they are seeing. That's gotta be it. Emotions taste good to our brain. So we feed them drama however we possibly can. Drama gives us emotions. Don't bloat your brain with too much of them there emotions. Gluttony apllies to emotions too.