It's only new people that do it. I remember, I was doing that when I was first new here. Now, I'm afraid of bringing a post back to light if it's a week old. Trust me, I've wanted to do that just in the last couple of days. But the new people here don't really get just how KS works real well yet. I didn't when I was new. I mean, not long ago there was a user (I'm not naming names) that answered a post about how the poster was leaving, when it was a couple years old. Or, when someone commented on an answer trying to answer a question that wasn't even asked by the person who is pretty much gone now.
It's annoying, but it's not the end of the world. Soon enough, these new users will learn. But there will always be new people.
Also, so far there isn't really much of a debate. Everyone's on the same side.