Back to the OP.
I think that a large part of the reason for the popularity of patient-led initiatives is trust.
There is no agenda attached to any advice offered, no financial incentive.
We can take time to ask questions and receive replies.
What we get is, 'try this, I do it and it works', not, 'here, take this, a committee says so.'
Much of the advice we are offered is politically or financially biased. People take to on-line forums for honesty and integrity - that is not the way it should be.