Another account of Ko Keuntae, 6p?

Ko Keuntae, 6p is my former classmate. Currently he is in best 20 in Korea.
He plays Go online regularly on several Go servers.
He has several accounts on Tygem, including KTF, 9-dan:

158 wins, 86 losses as 9d.  215 wins, 92 losses overall.
RP: 37508
Last 20 Games: 8 wins - 12 losses
Last game: December 31, 2008

The score was not good, so probably he decided to create another account.