Since I only have bipolar II, I have never experienced "true" mania, but I can tell you that even hypo-mania is not what is described. Hypomania is more like having your throttle stuck on wide open and nothing you can do will make it stop. You just keep moving a mile a minute, even if you're exhausted. The thoughts just keep moving, faster and faster. You become impulsive. Have you ever bought 20 plants because you were sure it was a great idea then killed them when you became depressed? Bought $400 worth of sushi because, shit, it's a Tuesday? Those are some things that happen, out of the blue, and the thing that's maddening is that anything you do while you're manic is going to get fucked up as soon as you become depressed.
And the depression isn't just melancholia, at least usually, it's something far deeper, the _inability_ to do things. You can will yourself to have motivation to do something for hours, only to find yourself hardly able to do it. It isn't even really a sadness, or disillusionment, it's a fog, it feels like you can't even think straight.
As a programmer, it's a special hell, because it feels like my brain doesn't even work right. And while Lisp is great, it is no salve to that.
So no, this isn't the Bipolar Lisp Programmer, this is the Stereotypical Smart Bored Youth Programmer.