Supprimer définitivement les publications supprimées en masse ?

[IAmGav (Gavin Perch)]

maybe this can help you

Bulk delete all topics in a category

To delete all topics from a category, you will need access SSH access to your server. If you use managed Discourse hosting, get in touch with your provider and ask them to help. If you run your own server, here are the steps you need to take to delete all topics in a category: This is a destructive action. Make sure to back up your forum before continuing Deleting Categories Find the “slug” of your category. This is the name of category used in the URL. SSH into the server …