Email address is optional, but is needed for password resets, should you forget your password.
The Mer Wiki now uses your Mer user account and password (create account on https://bugs.merproject.org/)
MediaWiki:Prefs-help-email
From Mer Wiki
The Mer Wiki now uses your Mer user account and password (create account on https://bugs.merproject.org/)
Email address is optional, but is needed for password resets, should you forget your password.
