I felt the same way when I first started seeing some comments via IRC logs. At first I was like, wow that's cool. He's talking with his customers via IRC...tight community...etc. Then when I realized how massive Mt. Gox is and here is a guy supposedly running the entire thing - billions and billions of dollars - the insanity that he's openly discussing business, security, "gag" orders, etc is mind boggling.

If you've read What didn't happen at Mt Gox, you can see how some of the author's assumptions there, especially regarding "It's Not Transaction Malleability", may have skewed his reasonings later. If point A is flawed, all the points after it are flawed as well. While I'm still hesitant to blame it on malleability 100%, it makes sense that that there could be a combination of malleability and bad security.

Security alarms would go off, somebody would notice something totally alarming, and they would basically just ignore it.

If this is true, it could very well lead to insolvency very, very quickly. I think the author of this article and the What Didn't Happen at Mt. Gox article should get together and put their knowledge together. It could lead to an awesomely enlightening post.