It was probably Pecon who did it.
Doubt it, he wasn't online that day or well at least when I went on and I was online from 9:00 PM PST Till 12:00 AM PST
At that time the only person that came online was siba and he was just doing what he does, I remember he Perma'd someone, I think it was Blockman02, I don't have build trust at all, either way I would never do something like that.
It had to have been done whenever Siba went offline.
The way I see it it had to be someone in the EST Timezone.