I feel particularly strongly about not labelling people as 'autistic' or 'schizophrenic'. In a world where treatment and care is moving towards being person centred and individualised, I feel it is very important to acknowledge the person who is not their diagnosis. Part of this is because those with learning disabilities and/or MH problems are still discriminated against and seem to be lumped together as a group of people with little recognition for the fact that they are individuals.
I've seen challenges to this such as; "my son with schizophrenia doesn't mind" but this doesn't wash with me because as a whole, the professional world is moving towards person first terminology. And while one person might not mind, overall, the terminology is evolving and moving forward.