Sure, yes.
I didn't had any issue with nostr:npub15369wu3wzzar5fclhecyqfv683x69n6nhlg7rxqnsg2dydgxflpq3apswl or my #Twint but i couldn not pay the other side cause he/she had an unregistrated Twint account.
I could not continue the process to pay him and it did not worked with Twint Post but worked with Twint ZKB.
i did not know that is able to have an unregistrated acount and i wonder if there will be an extra regulation issue in the future.
It would be also annoying if i had to brake the deal cause of that issue
nostr:npub15369wu3wzzar5fclhecyqfv683x69n6nhlg7rxqnsg2dydgxflpq3apswl rocks!