If I had been smart enough — or skilled enough — to put Oklahoma City backup point guard Cameron Payne and Utah Jazz center Jeff Withey on my Daily Fantasy Sports team at Draft Kings last night, I might be telling you about how I turned $3 into $50,000. There is a guy out there who actually is telling that story today, because through a combination of skill and luck, that player — who goes by the username of “supermanb8” —