[areyousure]

I did read the sidebar. [The Hacker News guidelines contain the following text: 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."]

I was not posting an answer. I was correcting an error in an answer, and I thought that showing that it contradicted Wikipedia was productive. (The automated implementation of the subreddit rules disagreed.) I thought it would be great if my comment resulted in either the answer or the Wikipedia article being edited so that they were in line; this objective was vaguely achieved.