I find it very hard to understand how a judge can conclude that the offender did not intend the threatening nature of messages like "You're not being good for human relations. Die."
I think wishing people dead is classless and cruel, but not a threat, which needs to be specific and actionable. The old internet "gem" was "DIAF", which is a terrible thing to say to another person. Is it a threat though? I don't think so. "I will set your house on fire and watch you burn" by contrast is a clear threat to undertake a specific criminal act, that's a threat.