MacM:
I also agree with you that merely disagreeing with a majority scientific viewpoint does not automatically make somebody a pseudoscientist. The difference between science and pseudoscience has little to do with being pro- or anti-authority (and this is a mistake many pseudoscientists make). The difference has everything to do with method.
James, you initially wanted to call this forum "Alternative theories" and from your above, you clearly see calling alternative theories of science, psuedoscience, is inappropriate. Then why don't you change the title of the forum? No one loses anything, if you do.