I commented on another article that the 500k bitcoin seller wasn't in it for the money. That they just wanted to cause doubt about Bitcoin and it worked. I had some people argue against it, but this is what I was talking about.
A comment from the post's author: "Given this, and what’s been happening with other Bitcoin exchanges recently, I’m left with a significant amount of doubt as to how well these exchanges, which Bitcoin depends on more than we’d like to admit, are run."
In other words, without the 500k bitcoin initial theft or market drop, he wouldn't have much doubt... Even though the same exact situation could easily exist.
Strong doubt has been created.