What if the host was planning all of this.
I see no possible way he could of been hacking, it must be the host unbanning him just for "jokes" and regarding that was followed by "joking about similar names" too. I have a prediction there was an actual game plan the host did here. He possibly got admin because the host told him via steam or any messaging program. It's a possibility, not saying it would be true the host was doing this.