How could Signal be considered privacy-conscious ? The first thing they do is ask for your phone number.
WhatsApp sends a copy of all your messages to ICE. Signal doesn't.
No they don't.
They ask _for_ a phone number. It doesn't have to be yours.
Give Signal a burner phone.
Because they have an huge PR campaign and a lot of money to invest in keeping their place.
Signal has profiles nowadays that can be used to connect with people without sharing phone numbers. The latter are only used for signup and discarded immediately after.