Since this is intended for international audiences, it maybe worth stating that "left-leaning" is what was considered center just a few years ago. (The idea of a general consent is somewhat a thing of a past.) Particularly "Der Standard", the newspaper the post is linking to, is now often attributed as "left" and its forum, the biggest and oldest one in Austria is subject to diffamation. (If you're reading the comments in this forum, there's a feeling that the law is meant to implement a premature censorship of sorts, an idea which is also maintained by some law and media professionals.) – While this is nothing like the US divide, there's no such thing like a common (political) perspective in Austria anymore. As a result, even comments meant to remind of the constitution and rule of law are sometimes countered by a qualification as left wing hate speech.
Edit: Previously, the political center of Austria was slightly to the left, like in most European countries. Bored with the great center coalition, the conservative party (ÖVP) has burned all bridges to the center-left social democrats (SPÖ) and is now considering the center rather more near its own right wing. Refugees and immigrants and "punishing" those are now the go-to argument for every legislative initiative. Also, governmental "message control", i.e., controlling what may be leaking of internal political communication or what may be setting an agenda, is deemed of high strategical importance by the ruling parties.