Skype not safe now, well not anough safe for paranoids. Microsoft bought them, and we already see news about implemented leak gate to alphabet agencies.
Well, you can say that this is ok, but they should give access not just to FBI, but also to Belorussian KGB (yes, it is still called KGB there, cheers), and lots of other nice organisations around the world.
What we (paranoids) need - encrypted, P2P voice chat. How is that affilated wyth BTC ?
It is easy. Such a nice decentralised currency system can only be in win-win situation, if there will be possabiliti to call from one wallet, to another. And that can generate additional influx of new users.
Time for this is not yet come, because bitcoin infrastructure is still weak, even for existing users.
But that kind of open source project can take a lot time before some alpha arrives. So it is better to start work on it now.
Realisation - It should be done like plugin to BTC client. There is a lot of questions,- should there be some affilated to wallet nickname, or just pure account to account connection (with psevdonims assigned to accs by users and encrypted too).
Well, it is just a raw idea.
Please share your opinions.