That's true, but you can stop posting to HN from that place.
Edit: I feel like I should give you a more fulsome response, so here goes:
I understand the frustration. I feel it too, even apart from HN making me feel it as part of my job. But I've had to learn some lessons about this, such as:
1. It doesn't help to assume the position of the-one-who-is-not-stupid. Doing that is supercilious and just means you'll contribute to making things worse.
2. Far better is to accept that, as one is human, one shares in all the qualities of being human, including a full complement of stupidity.
Regarding 2., I am not stupid; I might be ignorant in some fields, but do you see me arguing against a world expert in some field I know nothing about?