I followed the three steps below "To clarify" multiple times in different browsers and (3) did not work at all. I don't see the problem. This article has left me confused.

EDIT: Oh, seems like Instagram has fixed this after all. If you inspect the link on his Instagram profile, you will find rel="nofollow me noopener noreferrer" and if you remove that attribute, it works just as described in the blog. I learned something new.