I have been in therapy for the past three years on a weekly (sometimes more) basis. I participate in a "master" divorce support group hosted by my therapist twice a month and now am training to be a peer counselor in the divorce support group. The group I am training with specializes in emotional abuse and anxiety.
An expert I am not - but I *do* have experience in this matter on both the receiving end and now the healing end.
It's not a term to take lightly or toss around willy nilly but when it is present it's important to talk about it. Not to harm or embarrass somebody (god no!) but to help the person in crises remove as much harm as possible for their own emotional safety.