Depending on who it is, cyber bullying is done by a person who the victim knows in real life. It just spreads to online because the guy is too much of a pussy half the time to do it in person, so they do it where they are safe, behind the computer monitor.

Now, if its just some random ass kid online, it isnt hard to avoid this. Just turn the damn computer off or leave the game or whatever. Not everyone has a thick skin and can handle these kinds of things. Even if it's someone random on the internet. People take it to heart.

So, yes, cyber bullying is real. Some people take it too far and others can't take a hint to get the hell off of their cellphone.