Earlier quoted context omitted.
You should report this to the blog author; not to HN readers.
My assumption is that the OP, "geerlingguy", and the post's actual author Jeff Geerling, are one and the same. Not unreasonable, I think. If he wants to post his work on HN and not read the discussion (which is obviously going to be relevant to his work), that's on him.
And the assumption is accurate. You can read their HN profile and see the keybase.io connections to the website, HN account, and to github.