Will this encourage people to share more so they can express themselves more widely and maybe even entice desirable new connections? Or will it lead them to share less and batten down their privacy settings so that new eyes won’t include them in a search-graph roundup? “The user base might bifurcate between the people who don’t want to be found and those who really do,” predicts Elliot Schrage, Facebook’s vice president of communications and public policy, who points out that Facebook will give users those choices. “It will be fascinating to see what the percentages are — and the demographics.”
From Steven Levy’s January 2013 Wired article on Facebook’s New Graph Search project.