BOOMmaker

Why do people comment on threads with pretty much the same exact thing as the people above them, just with different wording (and sometimes not even that)? I'll be looking through a topic, and three, four people at any given time will repeat the same thing... Am I the only person to read what the people above me said before I comment? We don't need half a dozen people saying: "Needs scenery", or even one (at least not with that tone)...