On my Firefox it looks like four "a"s, with a sort of tower over the first "a" that ends in a frowny face with an accent over it. Is this[1] what you're seeing and describing differently? Or are we having different things displayed by Firefox?
On my computer I see three different representations: In the text on Hacker News, I see the stuff on top of the first "a", in the tab title, it is on top of the second "a", and in the window title, it doesn't render the SSID string (although the rest of the title is displayed).
[1] https://i.postimg.cc/nVPBqXjV/fireunicode.png