Signal Is a Good KYC Solution but It's Not Enough

I would trust signal a lot more than WhatsApp slash Facebook but at the end of the day it's the same model. I really hate that because phone numbers are not good identifiers you don't own them you don't control them especially if you're in the US your phone number can so easily be taken away from you just by knowing some small details and a lot of which is public in a lot of cases. In signals case they are trying to get away with it but so far they are still justifying the requirement of the phone number as a security measure.