Although most of us ME/CFS bloggers try to include disclaimers stating that we are not doctors, have no medical training, etc., this is may not be enough. In the case of this particular blogger, posting strong disclaimers both before and after his posts was not enough to deter the State of North Carolina. As ridiculous as the state's position seems, I think it's best to err on the safe side and stick to two rules:
1. Be clear that you are recounting your personal experiences whenever possible, and
2. When summarizing research, cite to your source(s) and make clear that you are simply paraphrasing or condensing the cited material.
And now for the ultimate irony of this post:
Disclaimer: Although I am a lawyer, I do not practice in the area of medical licensing. The above "rules" do not constitute legal advice, and are only intended as a lay opinion. If you have any doubts about the legality of a blog post or topic, consult a qualified attorney who is licensed in your jurisdiction....or whatever seems prudent to you. Just don't rely on my two "rules."