The internet, in general, is full of some very strange people who post very bizarre things under the cloak of anonymity.
I would caution you that many of the "professional" message boards for lawyers, doctors, and to a lesser extent, financial professionals are equally full of nonsense. Many are appalling. I was looking for some factual information on one of these sites (that my colleagues were unaware of) the other day at work.
I received several pages of racist ramblings employing ethnic slurs from several different posters in the reply, along with links to several pictures that were not suitable for workplace viewing which resulted in my throwing my sportscoat over the screen. I hadn't asked a question that even vaguely involved race, either - nor had I, obviously, asked for fecal matter pornography to be delivered to my workplace desktop.
I think many of these message boards have become hijacked by mentally ill or deranged persons who get "kicks" out of annoying others or, as I have heard from my nephews, "trolling people".
And yes, I think JNJ is "less sexy" than a lot of newer companies and often its blended nature means people don't understand their product line, but it is a consistent company.