How can a user unregister and leave a forum?
Pardon if this is a dumb question, but I can’t see such an option anywhere in preferences.
My user count for my forum has gone down, and I am also wondering how to see which user has left the group.
AI-generated summary
The discussion addresses how users can leave a Discourse forum and how inactive users are managed. Andro asks about user unregistration and how to identify users who have left. Canapin explains that Discourse automatically deletes inactive users (trust level 0, no posts) after two years, configurable via the “clean up inactive users after days” setting. Users can delete their own accounts, but this option is disabled after a period (default 60 days), preventing long-term users from self-deleting to preserve post history. Andro acknowledges this and realizes inactive users may have been removed by the system. Canapin adds that deletion logs can be checked in the admin panel under staff action logs, showing entries like “delete_user,” with a visual example provided. The topic highlights that account deletion is restricted to protect forum integrity.
Discourse automatically cleans up inactive users (trust level 0, no message posted) after 2 years. The settings clean up inactive users after days can be modified.
Besides that, new users can delete their account but the option isn’t available after some time (I don’t know the duration: maybe the setting is delete user max post age which is 60 days by default).
So, active users that have been there for some time shouldn’t be able to delete their account by themselves.
@Canapin thanks! I understand now. I did not know that. So an inactive user must have just been deleted by the system today.
I now realise that a user cannot delete themselves as it would mess up the post history.
Aaah yes, it is quite a popular topic here! 
https://meta.discourse.org/search?q=account%20deletion
