Durova points out the obvious lack in their analysis: they concentrate on arbcomm, whereas the everyday activity of admins stomping on fools escapes their notice. For example, I’ve done 500 admin-type things in the past year, most of them blocking people for edit warring in one way or another. That is puny compared to the general block log, which has 500 blocks in the last 10 hours, mostly just for tedious vandalism. Wiki would collapse in a heap fairly quickly if this kind of background enforcement didn’t go on. But since it is fun, people don’t mind doing it.