It is apparently not possible to change the "display name" you pick when subscribing to a mailing list in the Mailman3 web UI.
https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/message/OQ7IMAELJA6V2KRSRVWTJVP6JXTXJYIB/ somewhat explains how display names work in MM3 and is a mostly related https://gitlab.com/mailman/postorius/-/issues/451 upstream ticket.
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Open | None | T283128 In Mailman3, users cannot change their display name from the web | |||
| Open | None | T286217 Upgrade lists.wikimedia.org to next Mailman/hyperkitty/postorius versions |
With https://gitlab.com/mailman/postorius/-/merge_requests/628 it's possible for superusers to edit display names.
This is fixed in the next release apparently: https://gitlab.com/mailman/postorius/-/issues/451#note_579219934
@Marostegui: There's not much point in removing SRE because there are Herald/Maintenance_bot rules in place. If you want to change them please file a ticket
For reference, the query to fix someone's display name manually is UPDATE address set display_name="<name>" where email="<email>" limit 1;