Discourse apparently allows to automatically set the interface language based on the user-agent's preference however it seems this doesn't work for the MetaBrainz Discourse instance or is not configured.

Since the MusicBrainz website also automatically uses the user's preferred language (if not overridden or unsupported) it probably makes sense to do the same for the forum. Contrary to MusicBrainz it also seems in Discourse only logged-in users can change the interface language.

See also

• https://meta.discourse.org/t/variable-default-interface-language-for-new-users/33741
• https://meta.discourse.org/t/new-option-auto-select-language-by-http-header/35697