On Tue, 24 Sep 2024 07:35:54 +0200
JC Brand <lists@opkode.com> wrote:

> On 23 September 2024 11:59:43 GMT+02:00, Schimon Jehudah
> <sch@fedora.email> wrote:
>
> >Is there any document about MEP? 
>
> Yes, there's this:
>
> https://xmpp.org/extensions/xep-0316.html
>

Thank you, JC, for the reference.

> Other potential use cases for this could be pinning a particular
> message to the top of a MUC or providing custom user actions.
>

I, too, was thinking of pinning messages as a use-case.

> For example in a previous project, we used MEP messages to announce
> tips between MUC users.
>
> I would love it if the open source servers added support for MEP.
>
> Regards
> JC

Despite MEP, I think, that a new XEP, as suggested by Dave, is still
needed for what I want.