One of my therapists blocked me on Facebook. It really upset me. I found out after I stopped seeing her. I've never had any other therapist block me even the ones I've had issues with. I think she was just paranoid since I never mentioned Facebook much at all during our sessions. And she told me she had a fear of running into her clients outside of sessions.
I've looked up my pdoc before and found his facebook to be really odd. A lot of rich snobish posts. So I just blocked it.
My current T practically told me where she lived and she is always telling me about coffee shops in the area I should check out.