saintshaka, 9d - another shared account?

Recently I reviewed 2 of his games for Go4Go. The first game is saintshaka
vs zchen. saintshaka won it, but the both players made lot of kyu-level mistakes
in Life&Death. The second game I replayed is saintshaka vs echoli2008.
I can clearly say, that it was played by different person. saintshaka played
so well! He did not give any chances to his opponent from the early fuseki.

My feeling: there are 2 players, who share this account.
 First is about amateur 6-dan, the second one is professional.

Game review: Alexander Dinerchtein for Go4Go portal