Comment by andruby
That's a rather binary view and I disagree that rules always fall in either category.
Knowing _why_ a rule exists and what it's trying to prevent/achieve is much more valuable in my opinion. Wether or not to follow or bend a rule depends so much on the context.
Your argument circles back to the posters point. Knowing which rule you can break at a specific point in time. Why are you being so anal about it?