There are polite ways to correct someone's spelling.

Civility hasn't been a thing on HN for quite some time now, especially in any polarized thread. It's terrible, but even the moderators get in on the action by taking sides and burying viewpoints they don't like. This allows the Valley's toxic monoculture to shine through, which leads to rude comments like this one. Notice how that comment wasn't even flagged.

You don't have to swear because of a typo, English is not my first language.

You look much dumber than the person you're correcting by acting like that.