How do you tell if someone āhasā XMTP? I thought every wallet had it by default. Is OP pic looking at how many have sent/received a message?
XMTP supports end-to-end encrypted messaging by default, and by design. An account "has XMTP" if it has been "activated" and set up the necessary key material to make the encrypted messaging possibleāsomething that's not made accessible by wallets by default, in a standardized way.