Ouch.
danashby (DaGrimIV in game) just PMd me about this today, and I believe his story. The most convincing evidence that someone else used the account is in the scores -- during the time DaGrimVI says he used his account, the KPD was 0.3 to 0.7 with a max time of 75 hours logged on.
This month the Kpdis over 1.7 with 125 hours logged on. Seems pretty hard to believe increases that big could come magically on Nov. 1 if it were the same person.
From every standpoint, this issue ought to just die. Let's let the thread go, and I'd cut DaGrimVI the break it seems he deserves. However, DaGrimVI, if I were you I'd make a password change ASAP.