Overall, it seems the primary value for these things is international travel. If you're already a frequent international traveler, you've probably already got a travel-oriented credit card in your wallet. Such cards typically already take care of the problems Libra is targeted towards solving.
Given both Facebook's track record and that of other e-payment services' (like Venmo's) trackrecords on privacy, I'll probably just stick with using travel-oriented credit cards. Presumably, they'll remain at least as widely accepted as new-tech options and retain a information leak-radius I'm already comfortable with. Plus, with credit cards, I don't have to play the gameroom-token game.
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