I'm a night owl as well. I have to be as I work overnights. I wake up at 4pm everyday and go to sleep at 8 in the morning. What I can agree with this article on is that it does make me somewhat unreliable. Need me to be somewhere at 1pm? Fuck you, I'm sleeping. Need me to be somewhere at 5pm? Fuck you, I just woke up. There are exceptions, but those are rare. If anyone needs me to be somewhere or do something for them, most of the time they're shit out of luck unless I like them enough to do so. (Example: Raye tells me there is some kind of emergency and she needs me to be somewhere, I'll more than likely be there.)
And I can also agree to a certain extent about us being "emotionally unstable". I'm paranoid by nature. I honestly can't help it. Everyone else who works the nightshift where I work, save for one person, is a full fledged honest asshole. There's a reason we work the nightshift, and it's usually due to lack of fucks we all give. A lot of the people there are angry, rude, and can be annoyed at the drop of a dime.
However, a lot of them are very intelligent. They go to college, they work hard, they get their shit done. I'm the same way in that regard. I work overnights, I stay up all night, and I go to school, do my work, get it done in time, and I maintain a 3.8 GPA. The way that I look at it is; the early bird may get a worm, yes. However, the bird that was already up hours before hand got plenty of them before that asshole showed up.
I don't see being a night owl as a weakness in the slightest. I view it as a strength... albeit a strength that most people take for granted and piss down the drain.