Stereotypes?

Research on stereotypes suggests that when people are labeled in some way (e.g. blacks, whites, gays, etc.), strong stereotypes relating to these labels may be activated. Such stereotypes may then exert a powerful influence on subsequent judgments and decisions about these people. This has led some psychologists to criticize the DSM-IV, since one of the results of its use is the ignment of labels to individuals (e.g. schizophrenic, autistic, or depressed). Do you think that igning such descriptive labels to people could have negative effects? If so, what would these be?