As of Discourse 2.5.0 beta 3 Merge users is built into Discourse
See: Discourse 2.5.0.beta3 Release Notes
This plugin will not be supported long term and may break soon…
Update Dec 2022: I think a recent software update has meant that the plugin causes an error when someone is not an admin:
Unhandled Promise Rejection: Error: Could not find module
admin/models/admin-user
imported fromdiscourse/plugins/discourse-merge-users/discourse/components/merge-users-form
So if anyone else still has this plugin installed, now is the time to uninstall it.
With this plugin you can easily merge two users together.
Installation
Just add one line to your app.yml:
hooks:
after_code:
- exec:
cd: $home/plugins
cmd:
- git clone https://github.com/discourse/docker_manager.git
- git clone https://github.com/curiousdannii/discourse-merge-users.git
Then rebuild the container:
cd /var/discourse
sudo ./launcher rebuild app