[[Zombie Thread!!] On Sat, 24 Aug 2019 at 17:51, Jonas Schäfer <jonas(a)wielicki.name> wrote: Note that I didn't say "adding more stuff to MUC". Fine with adding more stuff to MUC, but XEP-0045 ought to be Final by now, and adding yet more functionality to XEP-0045 isn't going to help that. I'm not sure this change really satisfies the spirit of Stable either. On top of that, re-reading the proposal, yes - it's just too simplistic. So even if we did put it in XEP-0045 (or rather, ram it on the side with some glue, string, and sticky-backed plastic for speed) I think it'd eventually end up with more development and that would again affect the status of XEP-0045. Yeah, sorry, I didn't reply to this. Well, better (5 years) late than never! Put the tagging in a different specification, and either make a registry for the tag names, or make the tags URIs (or namespaced by URIs) so they can be more safely permissionless. Pubsub nodes could probably be taggable too, via possibly the same mechanism. Once you've done this, then adding search-by-tag seems possible (and even sensible), and we can add additional semantics to particular tags safely. The most obvious thing to do would be to add a XEP-0128 form which just holds tags, make the tags URIs, and make a URI prefix that means "these are plaintext human-readable tags" - but you could of course do the tag prefix URI within the field name instead. Dave.