[hrktb]

It depends on the people working with you, sometimes I feel commenting should be left for edge cases only. More often than not it seemed that people read the comments and stop focusing when reading the code; they just check if it vaguely matches the comments. When foregoing comments entirely there was much better feedbacks and questions on important points, the understandig of the code base seemed much better.

The latter also forces you to keep a very clean code, and tricky parts (things you couldn't simplify nor make self explanatory) surface better.