Well, at first i find your topic intriguing, understanding that the accounts here at bitcointalk forum are stored securely in a private database and hacking through these needs superb skill so the other known option to why your account is hacked is if you're phised or if you're scammed both are commonly owner's error. The forum already provided a warning to be careful and vigilant, its up to you to do what ever precaution necessary to prevent these from happening.