For example, it would be very convenient to configure tag "Open" for all new subjects. If solution was found, then we tag for this subject will be changed to "Answered". Furthermore, while having different categories it would be great to configure tags with category name for subjects in different categories. And when we move the subject from "category 1" to "category 2", the tag will be changed automatically to "category 2". Example is below:
Also, it would be VERY convenient while having more then 1 language on the community.