This guide is strange. The order of rules is in no relation to their importance: Imperative, Capitalize, Self-contained, Explain, Avoid "stuff", Length limit, C

This guide is strange. The order of rules is in no relation to their importance: Imperative, Capitalize, Self-contained, Explain, Avoid "stuff", Length limit, Consistency. That's like a health guide listing: Circumcision, Limit coffee, Exercise, Vitamins, Avoid "Russian roulette", Vaccination, Brush teeth.