[Standards] Proposed XMPP Extension: Anonymous unique occupant identifiers for MUCs

Jonas Schäfer jonas at wielicki.name
Wed Jul 17 14:25:47 UTC 2019

On Montag, 15. Juli 2019 17:57:12 CEST Jonas Schäfer wrote:
> The XMPP Extensions Editor has received a proposal for a new XEP.
> Title: Anonymous unique occupant identifiers for MUCs
> Abstract:
> This specification defines a method that allows clients to identify a
> MUC participant across reconnects and renames. It thus prevents
> impersonification of anonymous users.
> URL: https://xmpp.org/extensions/inbox/occupant-id.html

(Council Hat) I am +1 on this.

I think this should be supported in all modes of operation of MUC, no matter 
the anonymity. It helps with things like Message Correction as someone else 
has already pointed out.

As to the concern raised by someone about admin tasks: Moderation tasks should 
of course be able to use the occupant-id (future work). Regarding actual 
server administration tasks, server admins surely have a way to reveal the 
true JID of anyone connected to any MUC on their server, so they can still ban 
the entire domain. The MUC service could also expose such a feature for full-
anon rooms, via Ad-Hoc command or similar, to room owners.

kind regards,
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