After reading the entire thread and specifically, the ANAStarFlyer personal account of the events, one question came to mind. The guy was escorted to a front seat with his carryon was mentioned. But was he traveling with checked bag(s)? If so, ANA failed at checkin to notice something was wrong. I would have to imagine checked bag(s) were part of the equation on a trip between the US and Asia unless it was a MR but one wouldn't do a MR with a fake boarding pass, so that doesn't make sense. It would be interesting to find out.