Re: I never griefed
The ip's related to your account (when you registered):
49.227.112.25
47.72.44.203
49.225.102.160
49.227.62.246
Other ip's (coming from someone on telstra clear ISP):
118.92.93.105
118.93.115.9
118.93.97.49
There was no evidence of brute forcing the password, so either it was you or someone you know that you have told your password.
I suggest you go and change your password now to avoid something like this happening again.