- Teach the children how to react in situations like being approached by a stranger on IRC.
- Do not allow young children to go on IRC alone.
- Report any misdemeanors you encounter to the IRC Network Administrators, ISP Administrators, law enforcers.
Do this and the pedophiles will realise that it's useless to try and coax children on IRC. Parent's role is to teach their children how to stay clear and, if the need arises, react to bad situations.
They'll always exist, they'll just spread their claws through every medium to communicate. The same that murderers, thieves, poverty, etc will always exist.
Yes, there is something terribly wrong when a person feels the need to have sex with a youngster, but there is also something terribly wrong when a youngster doesn't know how to react to the situation to make it stop.