Ahh.. the glorious Spam button.

Yes if it's open to public it can be abused, but we could put a second layer where people moderate the spam ratings whether they're correct or not. But that can be abused too! So we'll put a third layer, and then a fourth.. ad infinitum. It's the tale of GOD Over Djinn!

Let's consider the more general case of a Good Post and Bad Post button. Perhaps the goodness of a post would depend on the weighted sum of all ratings on it. The weights being the # of times you agree/disagree with the rater in past mutual ratings. So each post's rating is dynamic; it leans heavily towards people who share similar perceptions as you. Eventually, those people who are just playing a fool with the ratings would diverge off and carry less weight to those who rate correctly.

And now it's time for me to sleep..

http://forum.lowyat.net/topic/400560

based on the thread, you'll realize that there are many who don't know how to differentiate a good post from a bad one.

I'd rather choose a bad post than a stupid topic...