Aside from people with an advanced case of scientism, within organized skepticism, I'd say they're best described as "contrarians". Shoot first, and ask skeptical questions later.
Just one example was a kid in our university skeptics club who, in a perfectly ordinary anthropology class, was told that Innuit would hunt by moonlight in winter. "********!", he responded, and came up with a million counterexplanations involving humanities and their and postmodernist ignorance of astronomy. He was wrong, of course, but what embarassed me was his lack of willingness to consider that something didn't fit into his worldview might actually be true.
What Ian's doing is confusing scientism with skepticism. While it's true that many skeptics are too scientistic, it's not true that the movement is overwhelmed by this problem. In fact, the higher you go in these organizations, the more broadminded the participants.
Scientism is certainly dogmatic, but the skeptical movement is well-represented by those who are seeking answers, wherever the journey may take them, and not dominated by these people. There's an appearance problem, because these people are quite rigid, and often have other problems that make them stand out in a crowd. But just because the one loud guy says he's a skeptic and isn't, doesn't mean that enough skeptics agree with him to matter.
It is not a coincidence that skepticism is closely aligned with the scientific method: this is the tradition of skepticism. As it happens, those who adhere to the scientific method share a set of assumptions, and one could consider this a sign of dogmatism.
It isn't.
It is convergence. After independent reflection, I have come to the same conclusion as many others. We were not forced on this road, nor do we fear stepping from it, and we are well aware there are other routes: but we have all found ourselves guided to the same path.
Ian accuses us of being indocrtinated by Westernism. Well, the "Western" tradition, especially in the US and Canada, is just as much bible-thumping, power-prayer, racial segregation, haunted house, ufo, bigfoot sightings as it is scientific. More so, I think. Those who doubt these phenomena are sticking our dicks into a meatgrinder of abuse. It is not 'dogmatic', neither is it 'conformism'.
The difference is whether we're independent thinkers who make an effort to be sure we have good ground for our conclusions (skeptics) versus those who just want to look smarter than everybody else because it's personally gratifying (contrarians), versus those who have no perspective and think that somehow believing the same thing as 98% of the population (eg: that there is life after death) somehow makes them rogue independent thinkers (pseudoskeptics).