The following study explores the effect of social media visibility on public discussion and, possibly, on the results of the 2015 presidential elections in Poland, unexpectedly won by Andrzej Duda. Instead of newspaper analyses and polls, Facebook interactions proved more accurate in predicting the final results. In the study, focus is laid on two key sources of visibility of opinion that emerged during the campaign: major daily newspapers, which provide space for opinion only to selected writers; and presidential candidates’ Facebook fan pages, which offer broad visibility to Facebook users’ opinions. The proposed interpretation of this discrepancy is that of a major shift in making public opinion more self-expressive and personal: public discussion is formed ‘in between’ rationality and emotion, publicness and privacy. The 2015 presidential elections in Poland reveal that this ‘in-between’ emerged in people’s Facebook activity, and it uncovered a public affect which translated into election results.