Redditors were drawn to GameStop stock after the company named three new directors to its board on Jan. 11 to help speed its turnaround, including a co-founder of online pet-supply retailer Chewy. But hedge funds, including Citron Capital and Melvin Capital, had shorted the stock. Short-seller Citron Research later posted a YouTube video, highlighting the downside potential for GameStop and it had published short-selling research.