It would benefit you to educate yourself on how to evaluate the reliability of claims you read online. Here's a tip to help you get started: anonymously written online posts that rely on other anonymous posts should be considered with a very high degree of scrutiny.
Did you bother to check the links in the article and tumblr post? You would have found archives of the web sites in question, with Nyberg's horrifying words dating back to 2006 preserved. The chat logs have been preserved and distributed all over the place as well; they're not hard to find.
Nothing in your comment changes the fact that you linked to an anonymously written article full of baseless speculation that relies on an anonymous Tumblr post that is also full of baseless speculation.
Not a single credible source in the entire mess of nonsense that you linked to. You should be embarrassed.