Discourse discussiants, testers and piloters,
On Phabricator there is a conversation about migrating from GNU Mailman 2.1 to GNU Mailman 3. Mailman 3 has web user interface for end users and list administrators named Postorius. The Fedora projects hosts also many mailing lists. They have moved to Mailman 3 last year. An example of their web interface can be viewed on line.
There is (or was) discussion about Mailman 3 at meta talk page about Discourse. The latest post their was negative about Discourse.
Why do we need mailing lists or Discourse when we have talk pages on wiki? Which features are missing on talk pages to provide on wiki discussions more or less the same user experience as a mailing list discussion?