there still no indication which of my two names is the one I signed up to use for mentions… I’m ok if a client choose not to respect it… but some use “your name” and others use “display name”. If a third tag “mention name” that wasn’t user definable but the client could rewrite the one they use from their profile editor, then other clients would have the freedom to honor that intention. Because client b has no clue where you signed up, they don’t have the freedom to honor the users intention.