“…So far, it has become common to distinguish between professional and amateur reviews (Verboord 2010(Verboord , 2011(Verboord , 2012(Verboord , 2014Kammer 2015, Steiner 2010. The relationship between the institutionalised or classical criticism and the online-native genre of (amateur) review has been examined in terms of migration from old media to new platforms (Domsch 2009, Orlik 2016, Rixon 2017, Gillespie 2012), a manifestation of diversification and democratization of opinion (McWhirther 2016, Frey & Sayad 2015, and professionalisation of the amateur activity of reviewing (Beaudouin & Pasquier 2017, McAuley & Leskovec 2013, Beuscart & Mellet 2016. The starting point for an increasing research interest is that, since the advent of the technological possibilities provided by social media, an increasing number of self-titled reviewers, in contrast to reviewing professionals who are commissioned and paid by media organisations and users contributing to platforms with pre-established amateur roles and genres, are producing reviews (Rixon 2017, Gillespie 2012.…”