He sent it as a response to another user saying "Sieg heil". He knew what it was and both of you should've known that it was wrong. I know people both online and in real life that would take extreme offense to something like this so I can see how a harsh punishment fits. Other than that I would recommend that Yukino makes an appeal.

He sent it as a response to another user saying "Sieg heil". He knew what it was and both of you should've known that it was wrong. I know people both online and in real life that would take extreme offense to something like this so I can see how a harsh punishment fits. Other than that I would recommend that Yukino makes an appeal.