So, to an outside observer, you might suggest that these users game Hacker News but the real answer is that they have an audience. It's debatable whether that's their fault, on a case-by-case basis, though.
Then you could probably say it goes the other way: a large part of the community feels a certain way because Ed says so (in the top position), or Thomas says so. I've noticed the atmosphere of a thread change after a comment from a "well-known" person is left, rather rapidly on occasion. The momentum of a community like Hacker News is an interesting study, and although I didn't get an opportunity to watch the thread under the microscope, I bet a large part of it was shaped by Ed's comment.
Recently I've learned how Hacker News threads are living organisms, and I've noticed the impact of the commentary that I make. If you pay close attention, you'll be surprised at how the thread evolves and grows, particularly based upon what's in the top position.
NOBODY KNEW THESE DETAILS AT THE TIME. Aaron was apparently prevented from sharing them. They are shocking. It is not reasonable to get angry at people for reasoning through questions and failing to account for secret information.
I've taken that lesson to heart personally, just from this thread alone.