The other day I wanted to switch Trello from "sign in with Google" to an email/password. The first step in the process was "To verify you before completing this action, please provide your Atlassian password". I don't have one, I'm signing in via Google...
My Spotify account was originally created using a Facebook link. I eventually switched over to an email/password before I deleted my Facebook account, but my Spotify account name is an annoyingly long gibberish hash value that I can't change (I assume it's something like a hashed value of my Facebook UID but I've never bothered to check).
My Spotify account created with a regular email has the weird hash username too. After updating the app its a coin flip whether or not the UUID looking string is what I see displayed. I don't understand how they can make such a large and complex service but not get user's display names correct?
