This is just somebody saying how much they agree with a book full of controversial ideas. And they are controversial, even within the scientific community.
Do a quick search of pubmed and you will find that there is, in fact, some pretty good evidence for the efficacy of homeopathic treatments, including the infamous ultra high dilution "placebo" treatments. The problem is that nobody is really sure how they work, but the evidence is there, they do seem to have specific effect.
And this guy's telling us chiropractic medicine is quackery? Do the footwork, folks. A quick search will show you that this is a bunch of bullshit; chiropractic medicine is a valid field of science and practice that uses randomized controlled trials just the same as all the rest of the medical community these days.
Bonus points for pandering to the idiots on slashdot, though. Everybody here thinks they're too smart to get cured by a placebo.