I'm not sure how I feel about debit/credit cards, but the postcard idea is cleve... | Hacker News

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		worklogin on Aug 18, 2014 \| parent \| context \| favorite \| on: The Anti-Facebook I'm not sure how I feel about debit/credit cards, but the postcard idea is clever. What better way to validate identity on a neighborhood-based network than postage?

callahad on Aug 18, 2014 [–]

I believe CouchSurfing has been doing the postcard thing for years, as well.

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