It's not all that far fetched to think that it would give headaches to some people. I know people who get headaches from using their smart phone, or computers in general. Why not Google Glass.
I know literally hundreds of people who use Glass daily and have never heard this once. Now it's on the front page of hacker news as a "thing". I don't doubt Chris is telling the truth about his experience. I'm just generally bothered by tech bloggers (in this case CNET) wanting to feed people intellectual junk food that they are looking for without any real concern for the damage it does to the industry they are reporting on. Reporting on legitimate problems with technology is beneficial because it opens a dialogue that ultimately makes it better, making "mountains out of mole hills" just distracts everyone and creates a fog of confusion.
I would surely trust more if the private forum for Glass owners was not private at all, so that we could rely on hundreds of different experiences.
As for being in HN frontpage, good to see people are interested also on real life experience and disavantages of new tech.
I do agree with your comment about the forum and I've lobbied for that to be opened up myself on numerous occasions. I think it's largely for legacy reasons at this point since people assumed their posts would be private it's tricky to make them more public than they had expected, but there are highly active communities on G+ that are public.