Now let's talk about #UX! (#UserExperience)
For something like this to work, for people to want to use it and ditch #Google and #Facebook, it would need to provide excellent user experience.
For example: how do we make sure that people keep their profile up to date? This proposed system would be no better than our current #ContactBooks if they are always outdated! This is more than a technical or UI problem. It's a user experience problem!
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