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Is it easy to "Yo" back someone if they're not in your contacts? On the android app I don't see how to do that.

Also, the security of this seems questionable.

There are other, more interesting uses of the yo API: https://medium.com/@YoAppStatus/yo-developers-api-e7f2f0ec5c...

The security is way beyond questionable.

Seriously, don't use this. (Alice tries to log in to Bob's account. Bob receives a yo. Bob yos back to be nice without knowing this is an oauth scheme. Alice now has access to Bob's account.)

But that's not to critique these guys, because I think this is a fantastic hackathon project!

As soon as AUTHYO yo-s you, it's popped to the top of your Yo friend list. So it's very quick to yo back.

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