This topic was originally going to be called; "Why Do People Troll?" but as I stopped to think about it people do SO much stuff without the fear of being caught. They hurt animals, children, and steal and kill other people. Not only do they don't have that fear, but apparently they don't have any compassion or empathy at all which is really sad. Even when I used to be a school and internet bully I regretted it afterwards.
(And no, I still have no idea why I used to do this.)
People do what's good for them, and what's good for them is not necessarily good for you. This essentially means that people are basically bad and need help to be good.
Mark 7:21-23 ESV
For from within, out of the heart of man, come evil thoughts, sexual immorality, theft, murder, adultery, coveting, wickedness, deceit, sensuality, envy, slander, pride, foolishness. All these evil things come from within, and they defile a person.”
Here badness comes from within.
You will note that the prevailing thought in the West today is that people are basically good. People only do bad things when provoked in some way. Therefore, those who do bad are actually victims.
Here badness comes from the outside.
The consequences of believing that badness comes from the outside means that you allow yourself to become vulnerable to bad things. If you are nice to other people, then you shouldn't be harmed, right? What if a nation thinks that way?