The name as displayed on HN is the "real" domain name, it's a format called Punycode, used to allow Unicode domain names despite DNS only allowing a subset of ASCII characters.
Firefox users can set "network.IDN_show_punycode" to "true" in about:config (or your user.js preferences), which will help you identify phishing attacks using lookalike domain names.
I believe Chrome users can do this as well, however it requires an extension.
I believe Chrome users can do this as well, however it requires an extension.