I'd expect the lack of actually seeing the bystanders to weaken the bystander effect. Lack of physical proximity to what is happen might lessen the urge to act

I'd expect the lack of actually seeing the bystanders to weaken the bystander effect. Lack of physical proximity to what is happen might lessen the urge to act. Pressing 'report abuse' is really easy, but calling the police based on online material is a lot harder.