[Yen]

Yeah, Tenex is definately staff.
His IP can't be compared, though.
It's Maloria's staff's failure for hiring him.

They knew he was there, hacking.
Everyone knows about him hacking the extremely insecure systems to reset other players.
As it stands, Maloria has no security. While calani was there, she created a system that catches people hacking god mode and added some security to the drop system, but it's still very much hackable.
If anyone with half a clue were to look at the reset system, it would be simple to see how he used it to reset others. It's incredibly easy for anyone with even basic knowledge of hacking to log on, create some items, 1 hit KO a few people, and then reset everyone online and log off all the while leaving no trace of who did it.