[Standards] Re: Proposed XMPP Extension: Explicit Mentions

Yes, but its the specific semantics that differ. In the first, the Attention element _is_ the room mention. My understanding is that Explicit Mentions isn't even used for room mentions in this scenario. The user sends the element itself, and the MUC just leaves it intact when forwarding to every member. In the second case, the MUC, not the user, is attaching the element. The user sends the mention, then the MUC attaches the notification _only_ on the stanza being sent to the users being mentioned. It works ALONGSIDE mentions, and is being sent by a different entity for more purposes than just room mentions. In the third case, it was less about notification and more about making the message look different as the attention-grabbing mechanism. It was likened to "important" messages in MS Teams. In this case, the element has nothing to do with mentions, as its used for something entirely different. Then there's the use-case Thilo just mentioned, where they go into "focus mode", which I assume might turn off normal mention notifications as specified here. In that case, it seems like they want Attention to be a way to forcefully notify someone regardless. This kind of aggressive message is what I had interpreted the XEP as, as well, when I first read it. The former two mainly differ in whether they expect a mention alongside the element, or whether it _is_ the mention. Meanwhile, the latter two actively require mentions _not_ to use XEP-0224, so that they can use it for some other purpose.