THIS. I have 8 years of open source work in bugzilla and github. If companies really give a shit, they would review code you already wrote and ask questions about your body of work. Not some arbitrary test.
The history of Google's "SafeBrowsing" with respect to Firefox is a real mixed bag. The privacy protections Mozilla asked for from Google were begrudgingly implemented. As a Linux user, I used to just turn it off.
This initial version is is very deliberate about who you share with. The idea is that the user is always in control of who anything is shared with. One way to help create your social network will be an "opt-in profile page" that others can view and collect your card via. Its in the works.
That is not the premise. The premise is that this is a parallel network for your trusted friends and family, off limits to the data-miners at FB and TWTR
The dataset of all towns in the world with > 1000 inhabitants is bundled into Kloak. The GPS location was originally highly accurate, but we rounded down to 2 decimal places. So if your GPS coordinates match the center of the city (rounded down), a place name can be generated. It basically will place you near the center of the closest town, again, its naively rounded to 2 decimal places. I want to go back to make this code a bit more sophisticated, with more choices for the user.
The way people "follow" you requires you to add them as a contact. Your contact card is basically a public key, but in a more human-understandable form.