Sadly I have had to disable comments in my previous blog because there is a being [that probably passes by human if you look at them] that started with insults, continued with more insults and then graduated to physically threaten me.
I always thought it was obvious, but if you insult people or try to cause them phisical harm, they are usually less prone to think "oh you're right, you've convinced me" and more prone to think "this human needs to stop harassing me and sort out their problems".