Imagine being grumpy at a Starbucks barista once and now you can’t get Starbucks again ever anywhere.
Or a better example: You opted out of email now you can’t reset your password. Sorry can’t email you the link.
They unsub'd all meaning "no more emails ever" as you said. How do I tell them the stuff moved if they don't want to be contacted ever again ever?
Imagine being grumpy at a Starbucks barista once and now you can’t get Starbucks again ever anywhere.
Or a better example: You opted out of email now you can’t reset your password. Sorry can’t email you the link.