Here is what it looked like for me after I signed in to Medium[1]. As far as I can tell there is no way for me to read the article without subscribing to Medium. Incognito allowed me to bypass this requirement as suggested by another user.
Ping dang or send them an email through the contact link at the bottom of HN.
Just for another anecdata I must have clicked two other articles hosted by Medium at some point today so I also can't see it - cheers for the alternate link!
Thank you - I was getting the same from Medium. Just slightly less pernicious than Facebook. Slightly.