I just think it's so dangerous to give out that advice. And the fact that anyone who disagrees with banned is just nuts. So anyone reading their FB page and seeing all the glowing comments, just keep in mind they delete the negative reviews and ban the people who posted them.
Two thumbs down for DN for me.
The first time they posted the article (which garnered overwhelmingly negative feedback - the whole link ended up being deleted) I sent the link to Dr Jean Dobbs' assistant. She said they had just received it from someone else and Dr Dobbs was unsure about whether or she should respond to it in her blog. I wish she had, someone should.