I called HQ, the person on the other end said they were looking into the issue. He could not tell me any more than that, or if they had any action planned. He did say that if they find evidence of fraud, that they would act. I refered him to the forums and stated the Sutton example. He said that it was a small incident, only a few votes, to which I replied that this was probably not an isolated incident.
It doesn't sound like they are highly motivated to do anything about it, unless someone presents evidence to them on a silver platter. But I thanked him for all their efforts past and present. I told him I know they have a lot of other things to do, and they probably got a lot of calls about NH, but I just wanted to voice my concern as well.