interesting, could this be his Disqus employee "privileges" allowing his comment to bypass moderation and if so, how does that bode for websites using Disqus? They control the discussion unless someone at Disqus wants to talk? Although ~~from what I can tell it's a free service, so they can't do much damage by leaving.~~ nevermind, there is a disqus premium service.
That was never a good idea IMHO... If you care about your readers, don't outsource comments. I cannot take websites seriously that are using Disqus (or Facebook, or other such shady, inaccountable stuff) to replace such a vital part of their online operations.