This type of comment is explicitly mentioned in the Hacker News Guidelines:

> Please don't insinuate that someone hasn't read an article. "Did you even read the article? It mentions that" can be shortened to "The article mentions that."

https://news.ycombinator.com/newsguidelines.html

How else do we dissuade people who don't read an article from jumping to ignorant conclusions and filling the message board with tripe?

Also described right in the comment you are replying to.

Are you insinuating that I didn't read the comment? I take such offense to this.

The comment you are referencing is in accordance with this section of the guidelines.

>>Please don't insinuate that someone hasn't read an article. "Did you even read the article? It mentions that" can be shortened to "The article mentions that."

It is ok to point out facts from the article. We just try not to go overboard with it. I know it might seem pedantic, but over time it really does result in a better community.