Yes, a fightback is necessary.  I support this idea, being from a country where 64% students have reported being bullied.  Bullying has become a major factor leading to dissatisfaction with govt schools.  When I was a teacher in secondary school, one of my duties was being a discipline teacher. Hardly a day without a student who comes crying that s/he was bullied.

http://nobullying.com/bullying-in-malaysia/

It is very important to do that

Cyberbullying and cyberstalking cases usually start and continue within the close circle of victims such as the same school or same neighbourhood. And, in most incidents, very similar methods are deployed by offenders repetitively. For example, spreading the malicious content by setting up fake accounts is one of those persistent ways of harrassment. Then, what can Internet service providers do? Very much, in my opinion, if they really want to prevent it. Theoretically, combination of location-based analysis of IP addresses and the semantic analysis of posts might reveal possible cyberstalking and cyberbullying cases since they resemble each other in many ways.  However, this requires serious investment with little to none profit for the companies at the end. And, I am not even mentioning the huge privacy concerns in the aftermath.