The account which posted this link to HN seems to have a posting history that includes at least one other Medium article by a one-time 'author' plagiarized from Hackernoon.
Please take a look at o_wilson's posting history, as I have found another link to a plagiarized article on Medium, and the situation doesn't pass the smell test.
Shouldn't you avoid adding that link to Medium to not give them free ranking?
Really? That sucks. If this is true, a mod should change the URL post haste.
Good article. Well done.
The link at the bottom is different. Is that an affiliate referral link?