Mark writes:
In Mailman 2 there is an Admin web UI for "Topics". Is there such a web UI that can be enabled in Mailman 3 so that the list owners can create topics (tags) in their lists?
Do you specifically want topics, that is, a way for users to select subsets of the list posts based on themes set by the administrator?
There is (was?) an alternative specification implemented by the Systers, which they call "dynamic sublists". The dynamic sublist feature is controlled by the users (thus "dynamic"), using specially formatted email messages to tag threads as "sublists" and to subscribe to them or suppress them. This was implemented internally by the Systers so it has not been contributed back to the Mailman project, and it was integrated with other Systers-specific features, so it wasn't just a matter of a git merge,
If that sounds as good as Mailman-2-style topics to you, I can add/emphasize it on our GSoC task list. (It was on our GSoC task list for several years (maybe still is, I need to check that since contributor applications are now open.) The Systers users are developers themselves, so using email commands isn't much of a burden. I don't think it would be impossible to add sublist control features to Postorius, but it's nontrivial, and might require a second project to implemnt after the initial port.
I may add the Mailman-2-style topic feature as well, although in my opinion the dynamic sublist feature is a better match for Mailman's core audience (lists that support open source development organizations).
Steve