Uninstall

When the plugin is deleted (not just deactivated), of_uninstall() runs:

1. Drops all 6 custom tables
2. Deletes all of_room, of_thread, of_reply posts (and their meta)
3. Deletes all options with prefix of_

Warning: This permanently removes all forum data. There is no undo. Export your data before uninstalling.

To deactivate without data loss, use Plugins → Deactivate (not Delete).