You could gather on HUKD users.
I see lots of posts about all sorts of threads enquiring about their lives, employment, families, hobbies, beliefs etc.
I have often wondered if you were a bit stalkerish how much info you could actually glean without them even realising.
I tend not to enter too much private info on here other than the basics but I see some threads with regular posters offering up all sorts of info.
Just always wondered just how much you could find out if you went over all the old posts.