There Isn't a real reason or a change in the rules since Kilo got banned, it's just what the committee decided. When Kilo got banned the old committee was still operating, but the new committee made the decision on Xanex. We have brought up the topic about lowering Kilo's ban time a few times, but no one has really put their thoughts in about it, so no decision has been made. But the topic is still up for discussion and there is still a chance it could be lowered, if Jitspoe and the committee see it fit to do so. I hope this cleared up your misunderstandment. Thanks
-erad