Posting is open to anonymous users. If/when spam is a problem it will require subscription.
It is recommended to subscribe though, since subscribed users do not need to enter Captcha.

Discussion Lists

• [users-jabox] Users Discussion List (Subscribe) (Unsubscribe) (Post by email)
• [dev-jabox] Developer Discussion List (Subscribe) (Unsubscribe) (Post by email)

Notification Lists

• [issues-jabox] Issues Notification List (Subscribe) (Unsubscribe) (Post by email)
• [commits-jabox] Commits Notification List (Subscribe) (Unsubscribe) (Post by email)