Nah man, I'm clearly just talking about hacker news comments.

Being kind to people on here (and the internet in general) is a sign of good faith, and you are more likely to get your message across.

In this instance, maybe just assuming the person doesn't know about this other data, and educating them on that fact.

Being passive aggressive, or actively aggressive, on an internet forum is usually pointless. It indicates you're an asshole more than it serves as an indictment of whoever you are replying to, 100% of the time.