Don't know sctb, but I have had run-ins with dang on multiple occasions where he asked me to stop arguing when I felt I wasn't being hostile. Nonetheless, it's always in a very moderate tone of doing his job, rather than trying to express power, and I respect that. (Nor am I implying that I didn't take the arguments too far, in some cases I did)
The real proof that they do their job though is that I can still occasionally fine deep insights here that just aren't available in other places.