Interesting in this context is completely divorced from morally good/bad. Could be any group from any area at any time in history. I’ll start with a few, followers of the cult of pythagoras, contemporary black Hebrew Israelites, antiracist skinheads and the Amish (neo-luddites in general). Don’t be racist or a prick to other people discussing.
As a psych nurse stealing thoughts is a symptom I’ve always struggled to comprehend. It happens at the right frequency that I’m sure it’s real (often enough in different people, but not often enough that they would have met to copy each other). But it’s also such a bizarre concept that I can’t imagine perceiving it happen. I can picture being so scared you think you’re being watched all the time and plotted against, and I can imagine seeing, hearing, or even feeling and smelling things that aren’t there. But thought stealing has to be a completely surreal sensation that I am entirely unfamiliar with.