Ask HN: Do you use Facebooks' new family tagging feature?
Facebook supports smart family tagging, @dad would tag your dad, if you've indicated this relationship. However, sharing this information with facebook does raise some privacy questions.
Perhaps Facebook could create a location where they could receive free technical advice on new product features and whether they would be helpful to their customers and society, with public votes and feedback? This could be done for roadmap features originated within Facebook and for user-generated roadmap requests.
As for privacy, is there economic value in DNA/SNA information harvesting by Facebook bots?
The best solution for users would client-side app/context text expansion that is independent of the backend web service. iOS has global text expansion (keyboard shortcuts) and Android has 3rd-party keyboards.