@SquarePegGuy many, many years ago (back in the 90s) DocJohn had another site. The name was something like Mental Health Net. I was a member there. From there I moved to another site (maybe also started by Doc John?) That site ended up being taken over by some people who let it turn into a toxic pit. I remembered DocJohn had started a new site (PC), checked it out and joined. Switched to MSF when he created it.
Sorry for sketchy details this dates back almost 30 years, plus I haven't had my first cup of coffee.