You are accepting a 'hat' that Dove isn't offering you to 'wear'. The article happens to include in its examples of on-line cultism, a belief about CFS causation, but Dove hasn't said anything generic about M.E/CFS affected people. What he has very succinctly identified is the pervasive dangers of succumbing to the group think of, in his suggested terminology, Forum Faiths, or E-tribes, or Chatroom Counterfactuals. Of course I'm bound to support Dove given a very strong incentive to confirmation bias.
IVI
The same can be said of those hanging out at bad science, pseudoscience, quackwatch, etc. If he was being intellectually honest he would provide that perspective as well. But I suppose it's okay to drink the kool aide if you go to those places?
You do realize that study in your link is about "chronic illness" and not CFS?