SOS I need your help!!!!

As you can see by clicking the Back to school entry, our block has been abused by someone who is so coward that writes under a nickname or under anonynous. S/He has abused this entry with silly comments. Furthermore, I had to delete some comments because the were against me as a teacher and as a person. I left some so they can be tracked back by police detectives. This is crime and if it doesn't stop and report I will report to Mossos d'Esquadra. What is your opinion of this? If you know who is doing this, Tell me. In oder to avoid this crime and abuse, you may need to identify to access our blog. Shame on the abusers!!!!!!!!!