It's as simple as I am in several FB groups and Whatsapp chats centred on brain retraining. There are a lot of people in them, talking about their experiences and asking for help. I've been in them for a while now, too. It adds up.@UkPoster, I respect your wish to remain anonymous, however I remain very puzzled by your privileged access to hundreds or more people who have recovered as a result of brain retraining and to discussions with some who have failed to recover because they chose not to. You have said you are not involved in provision of brain training, and do not have a medical training, but surely if you wish us to take this highly unusual level of experience in a lay person seriously it would make sense for you to say in what capacity this was.
I am an ME/CFS patient of some thirty years standing with both a previous clinical and research background (not in ME/CFS), but am certainly not able to cite the stories of hundreds or more of people with ME/CFS, nor would I wish to generalise on my experience without also drawing on published surveys or research. Where I do want to raise a potential generalisation I ask others, for example it seems to be a trope in brain retraining recovery story that people diagnosed with ME/CFS are universally told by doctors in the UK that they are never going to recover, which is the opposite of my experience, I raised that question here and we undertook a poll of our membership, that indicated at least as far as our collective experience goes this is not the case.
I don't know much about doctors saying you can't recover and am happy to take the results of your poll at face value, but there is definitely an issue that other patients tell you that and the M.E Association does. I've seen all sorts online of people saying 'only 5% recover.' It's a very strong message that comes through