[rnabel]

Interesting point re the zone-programming and being a cowboy programmer.

I don't think that 'in the zone'-programming has to produce bad code, though (if that's what you are saying). I'd argue that it depends on what gives you a reward. If you take pride in your code then you will find it rewarding to write tests and decent comments etc., and more importantly make a habit of doing so. A lot of people who write bad code think that they can get away with it because they are 'smart'. These same people then spend a ton of time trying to find bugs.

It sounds like your colleague is 'finishing' features by accumulating tech debt. While this may impress non-technical management, from my experience, it wouldn't make it into a high-quality production code base.

From people I've worked with, it seems like most people go through phases of extreme productivity ('being in the zone'). The code quality may suffer somewhat during those times, but they don't throw all good practice out of the window (not compiling for days, no tests?!?).