> why do people feel the need to run this fast
Because if they don't they feel like they will be replaced by someone who will
This happens all the time, even before LLMs. And it happens even when there is no threat. A lot of the time the race to the bottom is driven by anxious people running from imaginary threats. Which is why its often useful to have a person in a group who tells people not to panic (this is often an older person).
But of course the AI guys are preying on this anxiety in order to dominate. They are all over HN, either personally or with their bots. Which is why HN is no longer a place that you could go to get mainly unbiased anecdotes and experience. That is still available but it is being drowned out by FUD because the average HN user is now the mark.
This attitude gets people to willingly engage in abusive crunch practices such as in the games industry. I think the people who are like this are the ones who later talk about crunch like it was good in some way or necessary.
Basically a bad relation to labor and sustainable lifelong work.