Once someone decides their intelligence guarantees their correctness, they stop questioning themselves. There was conversation here about Israel starving Gaza, and they Israel needed to provide for Gaza like the USA did for Germany, that that was acceptable/gold standard treatment of an occupied populace. When I looked up the numbers, and Israel was actually during starvation providing more calories per person than the USA did Germany, I was instantly downvoted and told people need more calories. Just for providing actual context to comments that were routinely being made.

To someone who used to run a community, it is absolutely insane to me that on HN, users are given the tools to collectively censor people they disagree with, or even those who bring up inconvenient questions or truths.

HN moderators have the ability to take away people's voting privileges. It's either not an effective deterrent, not done at a large enough scale to be effective, or they are knowingly complicit in the manipulation.