In this paper, the notion of metapolitical participation is presented and discussed in relation to a case study of the online identitarian dictionary Metapedia.org. While political participation traditionally entails activities such as voting, demonstrating, petitioning etc., metapolitics, as a concept used by identitarians, excludes such expressions of political participation. Instead, metapolitics, as visible in Metapedia’s slogan “Countering semantic distortion worldwide”,  is defined as a way of influencing culture and societal discourse through cultural activities, such as compiling online dictionaries. Metapolitical participation describes  a form of online participation that is not compatible with traditional notions of democratic participation.  As the aim of Metapedia is to provide alternative (identitarian) constructions of reality, the mainstream media naturally becomes the main antagonist in their cultural battle. Due to this tension between mainstream media and the metapolitical agenda, we conducted  a qualitative content analysis of the media criticism at Metapedia. The empirical material consists of all articles (231 in total) in the category “massmedia” at Metapedia.org. In the articles we identified five main themes of media criticism: erroneous reporting, criticism of ownership and influence, “naming and shaming”, discursive contestations, alternative phraseology, as well as an additional theme dealing with promotion of other media outlets within the counter-public sphere. Our findings reveal that the authors at Metapedia express a deep anxiety, uneasiness, discontent and cynicism about mediated public discourse which is seen as deliberately marginalizing certain perspectives, covering up uncomfortable facts and is guided by a general principle of conformity to “political correctness”.