About the effectiveness of the "other' herbs etc.....
Personally, I think there is so much evidence and experience in support of the effectiveness of Black-Walnut Hull and other remedies (when used properly) discussed here on this and many other sites in great detail, that it would be premature to immediately accept the first voice of dissent I have heard that claims that these remedies are only 20% effective.
While I found much in that article of great interest, and I certainly would like more information on the usefulness of Pyrantel Pamoate, I am reluctant to dismiss the other herbs and remedies on the basis of a one line statement that is neither debated nor supported.