Like it is now possible for users to subscribe to Products, it would be great if users could subscribe to public tags and thus receive notifications when a post (idea, question, conversation) mentioning a subscribed tag is made.
Subscribing solely to a community is not enough, as a community might unveil many sub-topics for which users might not want to receive notifications about. So subscribing to tags will allow users to solely receive notifications on specific topics. For instance I might want to receive anything that has the tag “dashboards” and similarly, this would allow me to be alerted transversally, whatever the community it was posted in.