What's more bizarre yet is that when 'bullying laws' have been passed, they have proved entirely ineffective. Bullying normally happens out of sight of adults and enforcers, and it is often in the interest of the victim not to report it (since the bullies will then make his life even more hellish). Bringing the lawhammer down on children is also considered bad unless in extreme cases, e.g. those resulting in death: we don't have enough antibullying enforcement as it is, and adding the full force of the law is going to make people much more hesitant to move against it, if it now means bringing the law on children.
All these reasons apply just as much to 'cyberbullying' (which is a seriously stupid name: do we call bullying over the telephone 'telebullying'? No, we call it bullying). So explicit laws for it would be useless.
-- N., permanently traumatized by bullies but still thinks laws against bullying are certain to be useless, or worse than useless