An all or nothing approach isn't much good for anything. I work in the 'alternative health' industry and do take A LOT of time to educate myself and pass on good information to customers. People should ALWAYS educate themselves whether it's alternative therapies or western medicine.
I hope that I didn't imply that an "all or nothing" approach is the only way. I'm merely advocating the clear distinction of things that are supported by science and those that are not.
I'm merely fearful that when a high-profile celebrity such as Gwynneth Paltrow goes out of her way to publicly endorse something like "cupping", that many desperate people who have chronic illnesses will consider it to be on an equal scientific footing as Magnetic Resonance Imaging or Penicillin.
As you say, everyone should educate themselves as much as possible regarding their treatments; I agree completely.