The only time this really annoys me is when there are 2 or 3 posts with essentially the same subject line on the first two pages. As if it's too much trouble to even read the subject lines of the posts.
It just makes it harder for the next new user who will go to the trouble of using the search thus finding 10 threads on the same subject making them frustrated. Rather than go through those 10 threads, they post a new one.
Thus the mayhem continues.