There was a similar thread about a potentially suicidal user on AN/I (completely separate from the school threat report) that was also dismissed as unserious (someone added 'solves everything' or something to the Suicide article and made some other problematic edits because he couldn't get an article about his teacher). We are not (unless some of you are) professionals in assessing the risk attached to these types of comments, and we should report them when we can for a collection of good reasons.