Diversity is a good thing. AMDzone serves a need.
You can't compare forums like AMDzone, ABT, Anandtech, [H], XS, etc...they each serve a very different demographic. And those demographics get very different things from their visits to the various forums.
I liken AMDzone to the forum hangouts of sports fans wherein they will trash talk the competing teams despite the consistent losing streak of their own favorite sports team.
Been to any bars or pubs lately where you congregated with your fellow enthusiasts to down a pint or three whilst watching "CPU wars" on the tele?
Not at all, right? Such venues don't exist for our demographic.
But sports fans do, theirs is the larger demographic because that sort of human activity is far more common than the kind we indulge in (logging into a forum and discussing technical details and so forth).
AMDzone is for fans, no harm in that any more than there is harm in being a 49'ers fan. Folks of that demographic are going to congregate somewhere, and wherever that is you aren't going to mistake it as being a setting that is comparable to an ESPN discussion between players and coaches.
Fans have their hangouts, the pros have theirs, the academicians have theirs, etc. Each venue serves a purpose and a demographic, and it is all good.