Your linked article is not really a "confirmation": the BBC talked to a professor from Tufts University who says that the government is behind the account. Alternatively, Forbes talked to Alejandro Cao de Benos (a Spaniard who runs the "Korean Friendship Association":
http://en.wikipedia.org/wiki/Alejandro_Cao_de_Benos_de_Les_y... ), who claimed that the government has nothing to do with it:
http://blogs.forbes.com/taylorbuley/2010/08/23/north-korea-t...I think the most that we can say is that the evidence is inconclusive.