The decision on the first three places [in the Eurovision song contest] is taken by a very narrow circle of countries that mark the winners. Therefore- in order to humiliate Russia once again – Yulia Samoylova was not let to join the finals.
Conspiracy theory, no evidence given. Julia Samoylova ranked 15th in the second semi-finals because she got only 65 points. eurovision.tv/event/lisbon-2018/second-semi-final/participants,
Viewers at home and professional juries each determine the outcome of the two Semi-Finals of the Eurovision Song Contest. In each Semi-Final, 10 contestants qualify for the Grand Final.eurovision.tv/about/voting/,
Other examples of disinformation around the Eurovision: euvsdisinfo.eu/disinformation-cases/?text=eurovision&disinfo_issue=&date=,