In my view ResearchGate is developing in the right direction, i.e. real scientists use it, try to help others. A few months ago, it seemed too many quacks tried to use RG to sell their questionable, or even criminal, pseudo medical treatments for general health or even against cancer. I recently found an interesting list on Wikipedia (although I generally do not advice to use Wikipedia for really important questions): "List of ineffective cancer treatments" (see Link below). I thought this is quite a huge overview, just mentioning so many "alternatives". I wonder, why in our days still so many people get victims of questionable treatments?
http://en.wikipedia.org/wiki/List_of_ineffective_cancer_treatments