Yea, an entire column for amount of featured story games would probably be largely unused, however I still think we should somehow differentiate those with one or more featured games (as well as admins).
Maybe just a star beside their name if they have one or more featured games, and either give a unique colour or some sort of tag to those who are admins. Could add filters too, like to only see the admins , or who joined after/before X date, etc. Though filters are largely a "nice-to-have" feature I think. Just the basic list with the ability to sort the different categories should be enough on its own.
Also, maybe for those who have trophys we could add that beside their name...
Or better yet, just have a misc category which would show if they have a featured game/are an admin/have a trophy/etc. Put that in front of usernames and use only pictures to show them (using tooltips to describe what each picture signifys).
Though I'm sure the way October shows it now would be fine too.