Discourse Notifier

@Paracelsus your said user setting is implemented and the plugin is updated, through which a user can refuse to change its notification level by the plugin

The setting is provided at /preferences/profile section named as Allow site to change your notification level of frequently visited categories and Allow site to change your notification level of frequently visited tags

As per the discussion response, I will change the category setting to preferences/categories location and tag setting to preferences/tags location.