Is there a market for a secure messaging app (similar to Signal) that does not rely on personally identifying information (phone numbers and emails) or is that too fringe?
This is what I wish Signal was. A simple secure messenger that works with a username and not tied to an identity like phone number :-( Like HN...... Now that I'd happily pay for.
But having such an app would allow law abiding individuals to communicate privately and securely without disclosing their personally identifying data to anyone.