I will here illustrate the topic flair/type feature.
Tags are good for grouping the content a post is about.
Topic types are good to group the type of posts.
In a minor active forum - tons of sub forums may be a structure killer with many half empty subforums (forums with no a rare activity). For this purporse topic types may be a solution.
If you don’t like the way that tags are selected, you could get a theme component that would let you select them as in your image rather than the existing interface. I’m not sure how much work it would be but if you have a budget, you can commission a checkbox tag selector theme component.