Yes as surviors of mentally ill person, we have every right to say that they get wackier or more crazy when not on meds! Sorry but if you were child who was woken up in the middle of the night with a gun or knife pointed at you throughout your childhood because of this "mental illness"! Only few can thoughly understand while others get into being political correct in wording! I call as it is !
I'm going to argue this. You don't "have a right" to call anyone something derogatory simply because you had a life experience. It's like saying just because you know someone who is gay you can call them a f*ggot. Or because you know someone African American you get to call them n*gger.
If it's categorised as derogatory by the people you are saying it about, then that's what it is.
It's not being PC, it's being sensitive to how someone else feels. Mental illness and coming forward about it is still a massive battle and that language doesn't help sufferers.
I wrote a post a few pages about this when the discussion about mental illness stigmatism was quite lively. I too, know someone who suffers darkly and despairingly from a mental illness and has done for 40 years. And I know how those words make him feel.