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."

He or she didn't. He or she was quite direct. See https://en.oxforddictionaries.com/definition/insinuate.

If anything, it is you who are insinuating that the commenter did not read the HN guidelines. The guidelines misuse the word 'insinuate' to mean 'say or insinuate' or possibly 'accuse'.