People don't make these posts to serve as cautionary tales for others, they're usually asking for help.

It's very common on HN. I do it too. Mostly because we spend a lot of effort avoiding these platforms, and when something bad happens to a person because of it, we can shout, "Ha! My paranoia is justified!"

If you're working day to day as an engineer, you end up mostly thinking in unhappy cases and 99.99% uptime scenarios, so it actually seems like helpful advice.