People should just mind their own business. Take care of themselves, their immediate families. Jesus said "Love they Neighbor" and not "create drama throughout the trailerpark". These situations have a tendency to go in unexpected directions after they take-on a life of their own. People that solicit the involvement of strangers into their personal life's drama have a screw loose, and so naturally they are going to find someone else to focus "community attention" on as a way of taking the focus off themselves. Take care of yourself, first & foremost. Otherwise we get what we've got, which is a nanny state, a high-dollar bureaucracy managing the day-to-day details of everyone's life.
The "Hero" avatar, the "Crusader" uses the plight of others (which sometimes they create, or exagerate) in order to create a social identity for themselves, and attain a social status that they would not otherwise naturally acquire. They need "evil" in order to make themselves appear important, and they require the communities participation in order to validate that importance.
A phone call to a minor's parents, and a phone call to the appropriate law enforcement agency is enough. Taking up sword and shield and conscripting an army to lead a charge into battle is a self-serving grandiose delusion with no possible constructive outcomes. And minors need to learn to protect themselves from predators, and the parent that fails to make this happen should not allow them online, and should face legal consequences for exposing their children to dangerous people. It's no different that allowing your children to play in the middle of the freeway.
Besides that, it's MY freeway. It's for adults, and not children. Children can stay at home and do homework, ride bikes and climb trees. The internet is an adult workplace and playground, and I'm not willing to restrict my adult freedoms in order to accommodate the presence of children that shouldn't even be here, because their parents fail to take adequate safeguards.
Trying to "find the pedo" is ridiculous, like Elmer Fudd "wookin' fo' dat wascawy WABBIT". You find one and there are 5 more you never hear about. Your resources are better used taking care of your own, and setting up reasonable and common-sense protections for the community. One good step in that direction is to get the children out from the middle of the freeway, instead of trying to issue tickets to the speeders as they go by.