Yes, which sort of explains why it has failed for widespread adoption. The wider audience wants to be able to hand out their contact details at a bar and know

Yes, which sort of explains why it has failed for widespread adoption. The wider audience wants to be able to hand out their contact details at a bar and know they'll be able to block the person if they turn out to be a creep. Or they want to be able to block their annoying ex, that crazy QAnon fan cousin etc etc. This is a 100% must have feature, and yet it's treated like an optional feature. There's so many features like this - it's like people using XMPP have never looked at how most people use messaging.