If more people knew about how Parental Alienation and Hostile Aggressive parenting works, and how manipulative parents can coerce their children to say things they don't mean, then more people can help deal with the problem.
The alienating parent won't be able to get away with their self-centered behavior if people around them realized what they are doing is wrong and abusive.
Say you have a friend who constantly berates an ex within earshot of the children, you can understand that this person is disturbed and is in need of help, and that his/her children are suffering. You can tell this person their behavior is unacceptable, and urge them to seek help.
Maybe you are a teenager and your friend who seemingly had a great relationship with one parent suddenly can say no good about that parent. They suddenly know all the details of the family finances and marriage problems. Maybe this friend is suddenly very angry and aggressive. This can alert you that your friend may be suffering in the hands of an abusive parent. You can urge your friend to seek help.
There are many professionals such as judges, lawyers, psychiatrists, teachers, police officers, as well the general public that have no idea this problem exists. The aim of the Awareness is to make everyone aware of these problems and encourage the alienating, hostile aggressive parents to seek help.
The more people know about it, the more the alienator will not be able to get away with their underhanded alienation tactics.
With awareness comes education, and with education, comes the power to stop the mental and emotional abuse of young manipulated children.
Parental Alienation and Hostile Aggressive Parenting Awareness Organization - Emotional and mental child abuse.