(a) Markup to the body, that has the purpose to indicate that a part of the body is referring to a user or a group of users (b) Some indication that the message should have some sort of priority to a user or a group of users
In the direct mention case, I don't think we really wrnt to allow one without the other.
Who is "we"? I certainly want to do it and do so regularly in Slack.
You mention people without any indication in the body that you mentioned them in Slack?? How?
And if we use occupant id the idea of cross-room mentions becomes not possible. I'm not sure what the use case for those is but if we wand that I suppose we should use URI.
The ProtoXEP also allows for mentioning people by JID.
This email thread has already pretty much had everyone including the original author and the ProtoXEP author saying that will be removed. I forgot it was still in the published draft.
I'm very much open to also mention people by URI (allowing for mentioning of non-XMPP people, via e.g. tel:, mailto: and acct: URI).
Right. Which is what the existing refrences XEP would already allow (with the small, previously-discussed edit to not restrict the URI on mentions to URIs of bare JIDs)