Earl Kinmonth has written about "moral panics" in Japan on the NBR Forums. I don't think he is trying to suggest that Japan is the only country which suffers these outbreaks: Britain certainly does.
The NBR forums don't like having their debates reposted in other forums so follow the links for more. In summary, Kinmonth looks at the NEET phenomenom and reports that it has been massively overestimated. It appears that a Waseda university professor introduced the NEET concept from Britain but expanded it's definition which made the problem look especially acute in Japan. This professor has subsequently authored bestselling books and sits on government panels to address the problem.
Kinmonth also wrote this in response to Jeff Kingston highlighting Michael Zielenziger's "Shutting Out the Sun: How Japan Created Its Own Lost Generation". (Zielenziger wrote the article which kicks off the FG hikikomori thread). Kinmonth attacks the tendency of some foreign journalists to latch on to these moral panics and blow them out of proportion.