Razor You mean something like Discourse or Talkyard has?
https://beautiful.demo.talkyard.io/latest
I hope these things become imbedded in the Forum instead of another extensions.
I dont know if it will be, but I believe that the Flarum Community will make some major frontend changes in the future and I hope a lot of things goes from extensions to something that you get with Flarum out of the box.
I mean talkyard is open source and free & they have number of posts, replies, activity and so on, and they even have threaded style forum, so when someone writes something, and other people reply, you can easily find the replies very easy. I dont know if Flarum will go over to something like threaded and make everything easier or it will continue with the Flat design.