Namekuji Kimi
I believe in the vast majority of cases (notice how I did not say ALL) cyber-bullying is complete bull s**t.
You can block people, you can choose to ignore a site, make a new account, etc, etc.
It REALLY is not hard to remove your self from the situation.
The only time I think it is legitimate is when it boils over into real life; such as when someone is spreading rumors and harassing someone on Facebook, and then the people at school torment the individual because of what was done online.
But then I consider that normal bullying.
Cyber-bullying that is PURELY online is pathetic, and easily avoidable.
This. If you ignore the trolls, they go away. They want attention. Don't get offended by anything they say, because they just want to anger you. If they start stalking you, report them. If getting them banned from whatever site you're on doesn't help, change your username so that they can't find you. It's not hard.