Making people feel vaguely guilty about stupid fake crimes is not going to build character, or keep anyone calm under fire. Assuming someone wrote it, they were expressing a thought. So if you find who it is and punish him, they’ll still harbor the same thoughts, just they won’t express them.
>>find who it is and punish him
They don’t do that anymore.
Read SSGT Enos’ account of Operation Gridiron.