"Tartrate" vs "drink", second game

First part of this story: http://gosensations.com/?id=2&server_id=5&new_id=91

Someone asked how do I know, that DashNDot ID was used by real Kim Myungwan, 8p. Here is my answer: that time I worked on Dashn server myself, together with few other Korean professionals, including Kim, so I know the details well.