It is impossible to tell whose staff and whose not when viewing blog comments. The only reason I would know said person is a staff member, is because I knew this beforehand. But new users are not always aware of all the staff, and if said staff member warns them through a blog comment, how are they to know said person is a staff member?
Yes yes, they could click their names and visit their pages. But it is something I haven't quite understood yet-- why aren't staff names appropriately labeled in blog comments? It is something that just can't be done?
It's a minor change, but I feel its impact would be grand.