Of all the cranks, quacks, antivaccinationists, and pseudoscientists that I've encountered (and applied a bit of not-so-Respectful Insolence to) over the years, there are a few who belong in the top tier—or, if you prefer, the bottom tier. They stick out in my memory for a variety of reasons, either through their sheer crankitude on a variety of subjects (such as Mike Adams), sheer persistence on one subject (such as Jake Crosby or any of the denizens of the antivaccine crank blogs Age of Autism or The Thinking Moms' Revolution), or fame for promoting quackery (Joe Mercola). One of these…