Im not saying I totally disagree with you here but I know a lot of people who have 1st hand experience doing a lot of things and I wouldnt follow their advice if my life depended on it because they are idiots plain and simple. Just because someone has used a chemical doesnt mean they are using it correctly or that they are even educated in what it is or does.
They key is to take everything you read anywhere with a grain of salt, do research and then more reasearch and you will even find clinical studies often provide some of the most contradicting information.
If you take the time to learn a bit about biology and how hormones work in general that knowledge will go a long way in helping you decipher the banter you read everywhere. Not until you have a thurough understanding of what the chemicals do and how they work in the body should you use them.
The problem is no one wants to do the work or spend the time learning all these, they want someone to "tell them what to do" and thats when people get into trouble.