ReKonq and Muon - in principle it's always worthwhile. In practice, could you put it on your to-do list? The pages that I think of as catalogue pages all need some serious editing. The format in which they have appeared for some time does cause some problems and there is a better one, but I haven't had time to fix it yet. I'll try go get all of them fixed this week.
Applications/System/System Configuration - I'm not sure why you saw that. I can see it and edit it, but the same thing applies - please wait until I've improved it - just a few days :-)