There have been many historical examples of medical diagnoses that took on different meanings in everyday life to the originally intended scientific meaning, and as a result were abandoned by psychiatry, psychology and society. The words cretin, moron and idiot were all once formal medical diagnoses.
We believe that the diagnosis of schizophrenia has followed such a pathway and needs to be abolished as a matter of urgency. To describe someone as schizophrenic tells us nothing about them as an individual, and nothing about possible pathways to recovery. Rather, to diagnose someone as schizophrenic carries implications of split personality, hopelessness and in particular unpredictability and dangerousness. Schizophrenia is not a diagnosis it is a term of abuse.