You're parroting the official medical position which has not been revised in decades. There's a lot of opinions on the web based on incomplete science. I read a lot about it, and in the end decided to try it.
Who cares if it's a placebo, as long as it works I'm taking it.
For the record, homeopathy did absolutely nothing for me, so I'm not sure I have much of a placebo gullible body ;-)