Let's run with your Saddam example. When you say "He died beautiful", you mean that he was beautiful at the time of dying, but the dying is purely incidental to him being beautiful.

You could also say "He died insightful", which would mean that he was an insightful man at the time of dying, but the dying is once again incidental to him being insightful.

Now, logic breaks down when you say "He blogged insightful", but I'll analyse it anyway. Here you're saying that he was an insightful person, who happened to be blogging. But you're not relating his insight to the blogging at all, so it makes no sense to tell us that he was an insightful man at the time he happened to be blogging.

English isn't my first language, but I'm pretty sure the above is correct.