Bill Bowen commented to me some months back about the database being 50,000+ now. Did not get a chance to ask for more verification, but you can contact him and ask him about it.
In my personal speculation, based on research and study of institutional systems/business systems, the list may/may not serve as leverage and profit on child trafficking, as well as a method to keep members compliant in not so legal actions.
Another reason is the Jesus Manuel Cano case, the bethel elder and traveling missionary who was busted for 300 child porn DVD's and CD's in his Bethel room.
If a pedophile, molester is reported to the list, he/she now may have a higher interest in staying with the organization and not speaking out against it ever, as it would mean telling on themselves. In addition, it now gives the org leverage to make him/her compliant in enabling this further. You can get him to do all your bidding for you, under the implied emotional/spiritual blackmail.
Also, the list shows the way to the already molested children, who are silenced. They are already being molested and silenced, so the org can send an overseer who has already been on the list and offer him his choice of kids within that congregation. Think about the interest a JW pedophile elder/overseer would have in giving as much $$ donation to the org that has protected him with the 2 witness rule and gives him access to children who are already groomed and brainwashed into accepting it and blaming themselves for it and keeping silent.
I think the big money comes from their investments into war technology, tobacco, and child trafficking. Same thing for the Catholic Church. My two cents.