If the user selection for inbox relay doesn't exist, the user has not expressed that he is using a client that supports nip 65. Any fallback relay will be invalid, since read/write 10002 relays may not even accept 1059s. The only correct thing to do is to surface the error (and hopefully help users fix it).
Discussion
"may not accept" ok but they will sned to anyone who asks most of them
ah what a mess
So, Coracle cannot send/receive YakiHonne’s encrypted messages (I don’t know the NIP and all that)?
i've been saying it since that stupid nip-44 came out that it doesn't actually improve privacy or security, it just doubled the size of the tagget devs have to hit and nostr:nprofile1qy88wumn8ghj7mn0wvhxcmmv9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tcpr9mhxue69uhkscnj9e3k7unpvdkx2tnnda3kjctv9uqzp978pfzrv6n9xhq5tvenl9e74pklmskh4xw6vxxyp3j8qkke3cez0c7vk7 here would like that anything can be deprecated but it's in the nature of this enterprise that we don't throw a new stepping stone in unless we anchor it properly, otherwise we get the mess we see now