In California, I have noticed that people openly talk about those disorders.

The same is not true of bipolar, psychotic illnesses, dissociative disorders, and the like.

it is as if there were MI and MI; the respectable illnesses and the stigmatized, feared illnesses that people are often ignorant about.

My question to people in other places is - have you noticed that?

I have had casual, distant acquaintances talk about depression during lunches, absolutely without a need to do so. So it is really widespread. And I have seen blogs by the local celebs about depression. Nobody blogs about psychosis, so far.