Here's a thought:
Anyone in the JWs with personal knowledge of a child molester in their congregation or circuit/district should boycott any official JW event (Meetings™, Field Service™, Circuit Assemblies™, District Conventions™, Special Assembly Days™) and cut off any financial support for the WTS. If the Elders™ ask you about it, you tell them that you have personal knowledge of an individual in the Congregation™/Circuit™/District™ and that you will not be associated with a group who allows such individuals such liberal access to children, both inside the Congregations™ and in the Field Ministry™, and that you do not wish to have your children exposed to such individuals, nor do you wish to be responsible for inviting outsiders to associate with such individuals or facilitate access to the children of outsiders to pedophiles. Your conscience does not allow you to perpetuate these practices.
When you play the Conscience™ card, a typical JW does not know how to respond to that, because if they expect/encourage/instruct you to ignore your Conscience™ on such an important matter, they would create a Stumbling Block™ for you, and thus become Bloodguilty™.
I've used this tactic a couple of times with excellent results.