Muy interesantes los artículos Signs that you’re a bad programmer y Signs that you’re a good programmer.

Bad programmer:

1. Inability to reason about code
2. Poor understanding of the language’s programming model
3. Deficient research skills / Chronically poor knowledge of the platform’s features
4. Inability to comprehend pointers
5. Difficulty seeing through recursion
6. Distrust of code

Good programmer:

1. The instinct to experiment first
2. Emotional detachment from code and design
3. Eager to fix what isn’t broken
4. Fascinated by the incomprehensible
5. Compelled to teach