[dlitz]

> Don't get it by skimming? Must be crap code.

Well, there is some truth to that. Anecdotally, most lines of code will be read many times before they are changed/discarded, and most of this reading will be skimming, where the reader is either: 1) trying to understand the structure of the code, or 2) trying to figure out where to make modifications.

Code that's hard to understand quickly (e.g. by skimming) is technical debt. I think a good litmus test would include not just the effect on error rate, but also the effect on the time it takes to understand the code and to make changes to it.