Dogecoin founder Billy Markus posted on the X platform, strongly opposing a recent psychological study that discriminates against cryptocurrency investors. The study claims that those who invest in cryptocurrency assets tend to have "dark personality traits", especially "dark tetrads". The Independent article reports on the study of 2,001 adults living in the United States who were asked if they owned any cryptocurrency. About 30 percent of these adults admitted to owning cryptocurrency. In addition to questions about owning cryptocurrency, the researchers gathered some other information about them, including their psychological, political, and other personality traits. Based on this data, the researchers tried to determine the characteristics that best predicted whether someone had purchased cryptocurrency assets. The study showed that cryptocurrency owners among those surveyed relied on "fringe social media sources", "believed in conspiracy theories" and "felt victimized". Considering that X is also a very popular platform in the crypto community, the above article and the research on which it is based seem like an attempt to discriminate against both X and cryptocurrencies in the eyes of the American public.