macintux is correct. Here's why. The word "lie" implies more than saying something false—it implies intent to deceive. That's against the HN guidelines, which ask you to assume good faith. When people assume bad faith, the odds are much higher that the thread will degenerate into flamewar, and we don't want that here. Also, none of us has a mind reader, and it's almost impossible to read someone else's intent just from the small bits of information that internet comments provide.
https://news.ycombinator.com/newsguidelines.html
Here's what to do instead: when encountering incorrect information, respond respectfully with correct information. If the person was honestly mistaken, then they learn something; if they disagree, they can say why, also respectfully, and we can hear out the different views.
This way, we can all learn something, regardless of whether the other commenter is persuaded or not. Best of all, you don't discredit your own views by attacking the other person unnecessarily. If you're in the right, that's especially important, because you don't want to discredit the truth. https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...