I think there should be a blacklist of girls on the forum, indicating: their first name, surname (or alias), the city where they are staying, with a short description of the situation and their telephone numbers (which, if Googled, could be checked by possible victims of crime).
In Colombia it is not necessarily necessary to be kidnapped or poisoned with scopolamine: many girls professionally extort money and steal: in the forum, everyone should share a short note. Maybe it will save someone!