'Duncan Jenkins' is an inexplicably popular parody of journalists and bloggers, specialising in intentional grammatical errors and supposedly funny other sundry mistakes.
Jenkins, created by an unnamed blogger who supports Liverpool, would often post 'scoops' about the Anfield club, including news about transfers and team selections, some of which would turn out to be accurate.
This led many to assume that he was in fact a journalist close to the club, but according to a blog posted by the man behind the account, they were simply punts based on tweets and stories from other journalists, and word taken from Liverpool fan forums.
Furthermore, the blog claims that Chang, hired in the summer by Liverpool to be the club's communications chief, believed the Jenkins account was harming the club, even to the extent of costing them money in transfer negotiations.
Chang then supposedly met with 'Jenkins' to ask him to stop, making assorted threats about both him and his family, which you can read about in the blog itself here.
However, Chang has strenuously denied the accusations, despite admitting to The Daily Mail that he did in fact meet 'Jenkins':
"I will not be responding to total nonsense," he said, responding to the 'total nonsense.'
"The contents of my tweets that are included in the blog bear no relation whatsoever to the false accusations made by a fictional character.
"There was never any investigation by Liverpool over the tweets."