I knew two different people since gradeschool who later developed schitzophrenia in their early 20s and this is exactly the sort of stuff they talked about. One of them was posting prolifically on facebook back when I still used that, as in every 10 minutes for hours at a time about the various people tormenting her and secret agencies spying on her, it was really bizarre. The other one I knew thought his whole family was in some kind of conspiracy against him, occasionally he would be on medication for a while that settled him down but it also took all the life out of him and made him a bit of a zombie while he was on it. Schizophrenia is a really scary disease, people who have it tend to resist any form of treatment because they genuinely believe that they are sane and that people who are trying to help them are out to get them.
It's sad, when things like that, happen to people you know. Especially, if you knew them, before such episodes, started. I would guess, that the modern era. With many things open, 24 hours a day. Easy/quick internet searches, even if the search terms are crazy. Massive anonymous communications medium, such as this forum.
It could make things like that worse (but there are also ways, it could make it better).
It is not immediately obvious, which wins out. I.e. If modern times (now), is better or worse than say, 20 or 30 years ago. As regards, mental health and getting mental health issues sorted out.
My understanding, is it has never really been any good (for the patients), at any time, really, so far.
Maybe, in the future, diagnosis and treatments, will get better. One has to just hope, I guess. It seems to be a relatively neglected part of society, medicine and can cause sometimes negative feelings in others, if they know about other peoples, mental health conditions.
There is still varying amounts of stigma/negativity, both at the individual level and society level, about mental health and/or seeing/dealing with Psychiatrists, and other mental health professionals, such as Psychologists and Mental Health Nurses.
Both me, my imaginary friend, and all my other alternate personalities, all agree that I have no such problems.