Staffa - 11:31 pm on Aug 31, 2011 (gmt 0)

Fine, you can cyber bully my daughter or son to bits, destroy their lives for ever and never need to say who you are.

That is exactly why we want anonymity on the internet.
If your daughter or son were to use an alias instead of their real names your local bullies wouldn't know who they are. That is if they then didn't give their identity away by some other foolish means, like replying.