Well, it does seem like the forums are moderated slightly better in that obvious trolls get shut down a bit quicker.
Child Welfare is a giant pain. Essentially the way it works is that anyone can call in what's called an abuse report on a parent if they believe that there is potential abuse or neglect going on. From there, child protection investigators (CPI) go out to the location where the abuse report was called in on, and investigate. If there is a present and identifiable threat to child safety, they can either offer services to help remedy the situations, or if the situation is severe, remove the child from the parents' custody, aka, "shelter" the child. From there if the child is removed they're either placed with relatives, non-relatives (i.e., friends of the family), or if no one is available to care for the child, they go into Foster Care. At which point it goes to court, in front of a Dependency Judge, and they have what's called a shelter hearing, in which case the judge decides whether or not to uphold the shelter. Shelter hearing occurs within 24 hours of removal. If they decide to overturn the shelter, the child is returned to the parents. If they uphold the shelter, then a case manager gets assigned to the case (this is what I do, I'm a case manager). The case manager has to work with the parents throughout the case, such as when they get a case plan assigned to them (which basically states the things they have to do to get their child back, such as being free of drugs, taking parenting classes, etc). If they don't comply with the case plan once it's court ordered, they can potentially have their parental rights terminated. Otherwise, the goal is always to reunify the families.
...And that's the very short version of what I do. The full version is much, much, much longer.