How I Learned to Love Pseudoscience

[vulcanlogician]

My opinion, they sure do.  They're people who apply a highly critical model to new information with a steep bar for acceptance.  Like any tool....it can be used for a variety of purposes.  Our disparate conclusions hide the efficacy and ubiquity of the contemporary skeptical worldview.  I wouldn't want to be a religious nut from the bronze age trying to sell my religion from scratch...today.

I like Camus's take on it: they're suspicious, not skeptical.

I want to say anti-vaxxers aren't engaging in true to form skepticism because they aren't saying "prove x and we'll be satisfied." Conversely to skeptics, they propose a sort of bigfoot who is "out there in the woods somewhere." They're pseudoscientists. But just like homeopathists, who engage in "skepticism" of Western medicine, their brand of "skepticism" isn't oriented toward getting to the bottom of things, its purpose is to help them distribute their snake oil.

I find your definition interesting, though. "A highly critical model to new information with a steep bar for acceptance." It's true that, in any arena, skepticism can be taken too far. There's always something you can doubt. And nothing can stop someone from doubting. So maybe these guys are true to form skeptics... they've just taken the enterprise of skepticism too far.