So it happened? I mean geez, "welcome to the internet," but are any of them credible? It seems just as unfair to extrapolate a blanket view on commentary about Theranos if it's just random shitposters.
In my experience, people often have a (completely understandable and human) selective view of downvoting and flagging activity. There's a wide variety of opinions and perspectives on HN and I've seen all of them downvoted or flagged at one time or another, just as I've seen commenters of all persuasions be civil, well-reasoned, and, unfortunately, egregiously trollish and ranty.