This is funny because the author is exactly right, but I think he's misidentified the poor coders. The folks he's complaining about are academic coders without a lot of commercial experience, which tend to make all of those errors.

He also nails it when he says "idleness is the source of much trouble"

In the commercial world, you code to do something, not just to code (hopefully). So you get in there, get it done right, then all go out for a beer. You don't sit around wondering if there's some cool CS construct that might be fun to try out here (At least hopefully not!) Clever code is dangerous code.

Good essay.