DoC doesn't use CC affiliate links so isn't beholden to the banks. Usually quick to correct/update information in a post, rather than disappear it down the memory hole. Reliable and pretty much gets to the point most of the time. Especially in the CC forums here, I'd say DoC gets linked and referenced more than others on average.
DoC doesn't censor comments on the site for contrary opinions, in fact readers are encouraged to post differing data points, etc. Also is fairly active on Reddit. So plenty of opportunity for interaction and open discussion in other venues, so I suppose there probably isn't much need for such here. And I guess when you're a straight-shooter people don't have as much to say about your aim.