what exactly is the definition of "building"? I think people arguing(debating) is just a step in "building" and it's really whatever, at least people are talking about stuff.
Personally, i think the problem is that people are too quick to call the other stupid and tell em they don't understand anything. I mean, if i really am that stupid how does it help anything to call me stupid? Wouldn't it be better for you to break it down and explain the error of my ways? That's when things deteriorate, when people start telling the other how much they don't know instead of filling in what they don't know.