Byrne addressed PRWeek NEXT Conference attendees as the event's day 1 keynote speaker Tuesday on the topic of CEOs who lead with their convictions. The two-day event is being held at the New York Times Center.
"It's clearly an unorganized effort, and it's so leaderless that there's a message vacuum," he remarked on the Occupy Wall Street movement.
Byrne, who's led the Internet retailer O.co since 2009, has spoken out publicly on education reform, as well as led a vigorous campaign against corruption in capital markets through securities manipulation, which quickly caught the attention of Wall Street analysts and reporters and remains a point of high controversy today.
"I think they should get back on message," said Byrne. "They have to figure out what their message is and stick to it. And, the more they lean toward this pool of discontent, they are turning people off, and I think that they will lose their momentum."
When Byrne spoke to PRWeek in May, the online retailer was pushing its new O.co URL, transitioning its former "online liquidator" tagline to "savings engine."
Overstock.com is currently looking for a director of PR in-house. The online retail company works with Shift Communications in the US.