There is something to be said for both sides of the coin... I dont post my military info or experience. When I google my name, I "hit" my publications, academic record, etc... but there on page 3 starts the armorama/aeroscale/modelshipwrights posts.. :) "Googling" is a common work application procedure in many places, and sometimes you want to keep "that" side of your life hidden from "work"/professional life. I also refrain to post info related to the common "security" questions you see in many financial web sites, such as favorite pet, middle name, where born, etc.
General geographic location is useful, as you can exchange info about LHS and shows.