I think admitting our secrets (at least some of them) and vulnerabilities with others makes us feel closer, and is somewhat healing.

I agree about FB. Once you look up your T, it becomes an addiction. Mine never had anything but one photo, and now she doesn't have an account. Her H: that's another story. Thinking about his, and her kids' websites is triggering. I've been good, and haven't gone there again since I told T I wouldn't. It's not worth the guilt and anguish.
Is there a picture of your T on PschologyToday or one of those sites? I know my T's photo is there, and that's not crossing boundaries either.