The ironic thing in this instance is that in a way the author is clearly negating his point by needing to show the crossed-out text. Imagine you had followed the link, and the only text was "Fewer words create a more powerful message."

We would likely feel cheated at some level, like "That's it? How did one sentence get a whole HN link?" In a way we're conditioned to expect a bunch of garbage filler that we merely skim, and because that's what's in demand right now it's what authors are incentivized to provide.