Sony went on to say that it takes a “firm stance” against such behavior, which includes examples like “persistent and repeated, or prolonged, demands, excessive or unreasonable demands for compensation or apologies, and abusive language, threats, slander, and other similar behaviors.”
Other examples included “forcing someone to prostrate themselves” and “visiting our offices or related facilities without permission.” If any such behavior is confirmed, Sony says it may “restrict or suspend customer service” to protect its employees — and, if necessary, contact “police, lawyers, etc.” to take legal action or begin criminal proceedings against them.


You shouldn’t abuse or kill without need the enemy in war either. Doing so tends to be a war crime.
Yelling at and abusing people does not further your cause. I guess them going on a mental break, killing themselves or quitting does harm Sony, but the harm to them and society is much worse.
It likely doesn’t even harm Sony. Most companies outsource their customer service to 3rd party call centers.