You might want to read this...
Link
As for PD's not doing anything...they are, trust me....it's just not publicized, and for obvious reasons.
The statute of limitations for child 'annoyance' or molestations is being revised. CA's statue law is being argued in the Supreme Court...decision due by June 30th. If it's passed, it will allow the state to prosecute a 74 y/o man for a 48y/o crime. Changes are taking place, they're just not as visible as the PJ site is.
Be aware as well, that every time you log on as a teen user and try to snag a pervert you could be compromising the work the PD and FBI are doing. Too many people doing it is going to make the pervs gun shy and the PD's job that much harder.