Poland's central bank has been accused of hiring YouTubers to "start a smear campaign" against cryptocurrencies in the country, Business Insider reports. From the story: According to Business Insider Poland, the Narodowy Bank Polski spent around 91,000 zloty ($27,300) on a marketing campaign designed to attack the legitimacy of cryptocurrencies. The money was spent on platforms including Google and Facebook, but was also used to pay a Polish Youtube partner network called Gamellon. The Gamellon network reportedly represents many of Poland's top YouTubers, including popular prankster Marcin Dubiel. In December, Dubiel published a video titled "STRACILEM WSZYSTKIE PIENIADZE?!" -- which loosely translates as "I LOST ALL MY MONEY?!" In the satirical video, Dubiel invests all his money in a fake cryptocurrency called Dubielcoin, gets rich, but then sees its value plunge and loses everything. It has racked up over 500,000 views.