That might be a new feature, but we could always have flairs before it, it just required a bit more work in css. Which if you look into the current css file being used on KIA2 win it got a couple of flair for posts added (perhaps poor color choices and not much art) but they do exist, (flair for user could be added in a similar manner, except that it require a lot more work and manual update... unless those kind of flairs you are talking about in which they are a new feature) all that is needed to do is to be setup as you say, it could be that the GUI for it is different since i think kia2 win still use a bit older version. You have to ask Dom on what is blocking it.
That might be a new feature, but we could always have flairs before it, it just required a bit more work in css. Which if you look into the current css file being used on KIA2 win it got a couple of flair for posts added (perhaps poor color choices and not much art) but they do exist, (flair for user could be added in a similar manor, except that it require a lot more work and manual update... unless those kind of flairs you are talking about in which they are a new feature) all that is needed to do is to be setup as you say, it could be that the GUI for it is different since i think kia2 win still use a bit older version. You have to ask Dom on what is blocking it.